Vulnerability · Published Aug 7, 2026 · Assigned by WPScan
CVE-2026-15386Meow Gallery < 5.5.2 - Author+ Stored XSS via Attachment Alt-Text
Medium 5.4
In plain English
A medium-severity cross-site scripting in Meow Gallery from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The Meow Gallery WordPress plugin before 5.5.2 does not escape an attachment's alt text before outputting it into an attribute of the link it builds for linked galleries, allowing users with the Author role or above to store a JavaScript payload that executes in the browser of any visitor (including administrators) who views a post containing such a gallery.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Meow Gallery | 0 – before 5.5.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
- https://wpscan.com/vulnerability/f76518ec-3abb-4b3c-b592-f5e24059304b/ exploit, vdb-entry, technical-description