CVE-2026-91829 Subscribe to Comments WordPress plugin - Reflected XSS

Subscribe to Comments WordPress plugin < 2.3.3 contains a reflected XSS caused by improper validation of a parameter reflected into a link target, letting unauthenticated attackers execute scripts via crafted URLs, exploit requires victim to click the crafted URL.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Reflected XSS
Impact
Reflected XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Published
11 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to version 2.3.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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