7.1

CVE-2026-91829: unknown subscribe to comments Cross-site Scripting

CVSS: 7.1v3.1HighDeferred
Published 11-10-2026Last modified 11-10-2026
Open JSON

Vulnerability summary

CVE-2026-91829 is a high (CVSS 7.1) Cross-site Scripting vulnerability in unknown subscribe to comments. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.2% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 2.3.3.

Overall risk
38/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 11-10-2026
    PublishedVulnerability first disclosed.
  2. 11-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

11-10-202619-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Unknown1 product
Wordpress1 product
  • subscribe-to-comments≤ 2.3.2 (fixed in 2.3.3)

2 vendors · 2 products

References

2 links