Stored XSS and SSRF in Salon Booking System WordPress plugin
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Salon Booking System WordPress plugin before 10.31.11 is affected. It fetches a user-supplied image URL from the server without validating it and saves the response in a publicly accessible location under an attacker-chosen filename, which enables stored cross-site scripting (CWE-79). A user with the Salon Staff role or higher can make the server read internal-only resources and store an SVG file that runs scripts in the site origin for anyone who opens it. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The Salon Booking System WordPress plugin before 10.31.11 does not validate a user-supplied image URL before fetching it server-side and writing the response to a publicly accessible location under an attacker-chosen filename, allowing users with the Salon Staff role or higher to force the server to read internal-only resources and disclose them, and to store a malicious SVG that runs arbitrary scripts in the site's origin for anyone who opens it.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Salon Booking System | before 10.31.11 | 10.31.11 | Patch available | CNA |
- Salon Booking System VendorUnknown Affected before 10.31.11 Fixed in 10.31.11 Patch available CNA
Remediation
Update the Salon Booking System plugin to version 10.31.11, which fixes the issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Salon Booking System (Unknown) Fixed in 10.31.11
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Salon Booking System 10.31.11
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-76032 Privilege escalation to administrator in Salon Booking System pluginPriority LOW 33
- TI-2026-76033 Missing authorization in Salon Booking System lets staff demote administratorsPriority LOW 24
- TI-2026-76035 Salon Booking System discloses hidden coupon codes to subscribersPriority LOW 19
Timeline
- 2026-10-18 Threatist record created from CVE-2026-110033
- 2026-10-18 Alias added: GHSA-6fxp-r7r3-93x6
References
Sources
- CVE-2026-110033 · CVE Program
- CVE-2026-110033 · NVD
- FIRST EPSS
- GHSA-6fxp-r7r3-93x6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences