Vulnerability · Published Oct 11, 2026 · Assigned by WPScan
CVE-2026-91829Subscribe to Comments < 2.3.3 - Reflected XSS via 'ref' Parameter
High 7.1
In plain English
A high-severity cross-site scripting in Subscribe to Comments from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 94.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The Subscribe to Comments WordPress plugin before 2.3.3 does not properly validate a parameter before reflecting it into a link target, allowing unauthenticated attackers to perform Reflected Cross-Site Scripting via a crafted URL against anyone who clicks it, including administrators.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Subscribe to Comments | 0 – before 2.3.3 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
References
- https://wpscan.com/vulnerability/1ed0314d-9871-4914-bb9c-ff894ea4c400/ exploit, vdb-entry, technical-description