What is CVE-2021-24838?

CVE-2021-24838 is a medium-severity vulnerability in Bologer Anycomment, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2022-01-17.

How severe is CVE-2021-24838?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2021-24838 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Bologer Anycomment

CVE-2021-24838

The AnyComment WordPress plugin before 0.3.5 has an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated first, leading to an Open Redirect issue, which according to the vendor, is a feature.

Vulnerability class: Open Redirect

Published 2022-01-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.022 (81.9th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Bologer Anycomment
Anycomment — versions 0.3.5

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

Public proof-of-concept exploits

References

wpscan.com/vulnerability/562e81ad-7422-4437-a5b4-fcab9379db82 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24838?: CVE-2021-24838 is a medium-severity vulnerability in Bologer Anycomment, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2022-01-17.
How severe is CVE-2021-24838?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-24838 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.