Appointment Hour Booking: known security problems
16 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 16 known security problems on this page. Each one has a fixed version. Updating to version 1.5.98 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
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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 1.5.97
- Fixed in
- 1.5.98
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.5.98 or newer.
- Official ID
- CVE-2026-96573
- Report title
- Appointment Hour Booking <= 1.5.97 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Booking Form Single-Line Field via Schedule Calendar List Renderer
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 1.5.94)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.5.94
- Fixed in
- 1.5.95
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.5.95 or newer.
- Official ID
- CVE-2026-86475
- Report title
- Appointment Hour Booking <= 1.5.94 - Unauthenticated Appointment Slot Capacity Bypass
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 1.5.94)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.5.94
- Fixed in
- 1.5.95
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.5.95 or newer.
- Official ID
- CVE-2026-66679
- Report title
- Appointment Hour Booking – Booking Calendar <= 1.5.94 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 1.5.87)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.5.87
- Fixed in
- 1.5.88
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.5.88 or newer.
- Official ID
- CVE-2026-16282
- Report title
- Appointment Hour Booking <= 1.5.87 - Unauthenticated Price Manipulation
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site 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 1.5.86
- Fixed in
- 1.5.87
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.5.87 or newer.
- Official ID
- CVE-2026-65514
- Report title
- Appointment Hour Booking – Booking Calendar <= 1.5.86 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone who already has an admin account 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 1.5.60
- Fixed in
- 1.5.61
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.5.61 or newer.
- Official ID
- CVE-2026-1083
- Report title
- Appointment Hour Booking – Booking Calendar <= 1.5.60 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Min/Max Length' Field Configuration
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 1.4.56)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.4.56
- Fixed in
- 1.4.57
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.4.57 or newer.
- Official ID
- CVE-2024-32720
- Report title
- Appointment Hour Booking <= 1.4.56 - Captcha Bypass
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 1.4.23)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.4.23
- Fixed in
- 1.4.24
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.4.24 or newer.
- Official ID
- CVE-2023-45649
- Report title
- Appointment Hour Booking <= 1.4.23 - Missing Authorization to Double Booking
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 1.3.72)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.3.72
- Fixed in
- 1.3.73
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.73 or newer.
- Official ID
- CVE-2022-4035
- Report title
- Appointment Hour Booking <= 1.3.72 - Unauthenticated iFrame Injection via Appointment Form
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 1.3.72)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.3.72
- Fixed in
- 1.3.73
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.73 or newer.
- Official ID
- CVE-2022-4034
- Report title
- Appointment Hour Booking <= 1.3.72 - CSV Injection
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 1.3.72) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.3.72
- Fixed in
- 1.3.73
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.73 or newer.
- Official ID
- CVE-2022-4036
- Report title
- Appointment Hour Booking <= 1.3.72 - CAPTCHA Bypass
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 1.3.71)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.3.71
- Fixed in
- 1.3.72
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.72 or newer.
- Official ID
- CVE-2022-41692
- Report title
- Appointment Hour Booking <= 1.3.71 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 1.3.55)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.3.55
- Fixed in
- 1.3.56
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.56 or newer.
- Official ID
- CVE-2022-1710
- Report title
- Appointment Hour Booking <= 1.3.55 - Authenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 1.3.17)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 1.3.17
- Fixed in
- 1.3.17
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.17 or newer.
- Official ID
- CVE-2021-24712
- Report title
- Appointment Hour Booking <= 1.3.16 - Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 1.3.16)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 1.3.16
- Fixed in
- 1.3.16
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.3.16 or newer.
- Official ID
- CVE-2021-24673
- Report title
- Appointment Hour Booking <= 1.3.15 Admin+ Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 1.1.46)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 1.1.46
- Fixed in
- 1.1.46
- What to do
- If your site has an affected version, update Appointment Hour Booking to version 1.1.46 or newer.
- Official ID
- CVE-2019-13505
- Report title
- Appointment Hour Booking – WordPress Booking Plugin <= 1.1.45 - 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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