My Calendar – Accessible Event Manager: known security problems
23 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 23 known security problems on this page. Each one has a fixed version. Updating to version 3.8.8 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
Get an email when your site is affected: install Watchfox AI (free)
A stranger could run their own code on your site and take it over
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.4.24
- From 3.5 up to and including 3.5.21
- From 3.6 up to and including 3.6.17
- From 3.7 up to and including 3.7.17
- From 3.8 up to and including 3.8.7
- Fixed in
- 3.4.25, 3.5.22, 3.6.18, 3.7.18, 3.8.8
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.8.8 or newer.
- Official ID
- CVE-2026-104798
- Report title
- My Calendar <= 3.8.7 - Unauthenticated Privilege Escalation to 'mcs' Parameter via Reflected Shortcode Injection into 'above' Attribute
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 3.8.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.8.3
- Fixed in
- 3.8.4
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.8.4 or newer.
- Official ID
- CVE-2026-77186
- Report title
- My Calendar <= 3.8.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'fallback' Shortcode Attribute
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 3.8.3) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.8.3
- Fixed in
- 3.8.4
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.8.4 or newer.
- Official ID
- CVE-2026-77187
- Report title
- My Calendar <= 3.8.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'before' and 'after' Shortcode Attributes
- First reported
- Sources
- Wordfence, seen
A stranger could read or change the data in your site’s database (up to and including 3.7.8)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.7.8
- Fixed in
- 3.7.9
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.7.9 or newer.
- Official ID
- CVE-2026-6854
- Report title
- My Calendar <= 3.7.8 - Unauthenticated SQL Injection via 'mc_auth' and 'mc_host' Parameters
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.7.14
- Fixed in
- 3.7.15
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.7.15 or newer.
- Official ID
- CVE-2026-11896
- Report title
- My Calendar <= 3.7.14 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'vcal' Parameter
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 3.7.9)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.7.9
- Fixed in
- 3.7.10
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.7.10 or newer.
- Official ID
- CVE-2026-7525
- Report title
- My Calendar <= 3.7.9 - Authenticated (Custom+) Missing Authorization to Unauthorized Event Publication via 'event_approved' Parameter
- First reported
- Sources
- Wordfence, seen
A stranger could slow down or crash your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.7.7
- Fixed in
- 3.7.7
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.7.7 or newer.
- Official ID
- CVE-2026-40308
- Report title
- My Calendar < 3.7.7 - Unauthenticated Denial of Service
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 3.7.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.7.3
- Fixed in
- 3.7.4
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.7.4 or newer.
- Official ID
- CVE-2026-2355
- Report title
- My Calendar – Accessible Event Manager <= 3.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 3.6.16)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.16
- Fixed in
- 3.6.17
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.6.17 or newer.
- Official ID
- CVE-2025-67592
- Report title
- My Calendar <= 3.6.16 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 3.4.23)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.4.23
- Fixed in
- 3.4.24
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.4.24 or newer.
- Official ID
- CVE-2024-1274
- Report title
- My Calendar <= 3.4.23 - Authenticated (Admin+) Stored Cross-Site Scripting via Events
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 3.4.23)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.4.23
- Fixed in
- 3.4.24
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.4.24 or newer.
- Official ID
- CVE-2024-25916
- Report title
- My Calendar <= 3.4.23 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- First reported
- Sources
- Wordfence, seen
A stranger could read or change the data in your site’s database (up to and including 3.4.21)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.4.21
- Fixed in
- 3.4.22
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.4.22 or newer.
- Official ID
- CVE-2023-6360
- Report title
- My Calendar <= 3.4.21 - Unauthenticated SQL Injection
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing (up to and including 3.4.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.4.3
- Fixed in
- 3.4.4
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.4.4 or newer.
- Official ID
- CVE-2023-23813
- Report title
- My Calendar <= 3.4.3 - Cross-Site Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing (up to and including 3.3.24.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.3.24.1
- Fixed in
- 3.3.25
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.3.25 or newer.
- Official ID
- CVE-2022-47427
- Report title
- My Calendar <= 3.3.24.1 - Cross-Site Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone could send your visitors from your site to a harmful site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.3.16
- Fixed in
- 3.3.17
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.3.17 or newer.
- Official ID
- CVE-2022-36371
- Report title
- My Calendar <= 3.3.16 - Open Redirect
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 3.3.16)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.3.16
- Fixed in
- 3.3.17
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.3.17 or newer.
- Report title
- My Calendar <= 3.3.16 - Administrator+ Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 3.2.17)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.2.17
- Fixed in
- 3.2.18
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.2.18 or newer.
- Official ID
- CVE-2021-24927
- Report title
- My Calendar <= 3.2.17 - Subscriber+ Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.1.9
- Fixed in
- 3.1.10
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 3.1.10 or newer.
- Official ID
- CVE-2019-15713
- Report title
- My Calendar <= 3.1.9 - Unauthenticated Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2.5.17)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.5.17
- Fixed in
- 2.5.17
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 2.5.17 or newer.
- Report title
- My Calendar <= 2.5.16 - Authenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2.3.30)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.3.30
- Fixed in
- 2.3.30
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 2.3.30 or newer.
- Report title
- My Calendar < 2.3.30 - Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could run their own code on your site and take it over
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.3.29
- Fixed in
- 2.3.30
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 2.3.30 or newer.
- Report title
- My Calendar <= 2.3.29 - Path Traversal to Remote Code Execution
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2.3.10)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.3.10
- Fixed in
- 2.3.10
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 2.3.10 or newer.
- Report title
- My Calendar < 2.3.10 - Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 1.10.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 1.10.5
- Fixed in
- 1.10.5
- What to do
- If your site has an affected version, update My Calendar – Accessible Event Manager to version 1.10.5 or newer.
- Official ID
- CVE-2012-6527
- Report title
- My Calendar < 1.10.5 - Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Where this comes from
We collect these reports from public security sources and rewrite them in plain words. Each problem shows its sources and the date we first saw it. This page never says whether your own site is affected: only a check of your site’s versions can tell.
Get an email when your site is affected.
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