How severe is CVE-2021-24329?

CVE-2021-24329 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24329 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24329?

CVE-2021-24329 affects Automattic Wp Super Cache. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24329?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24329 published?

CVE-2021-24329 was published on 2021-06-01 and last updated on 2026-06-17.

CVE-2021-24329

CVE-2021-24329 is a medium-severity vulnerability in Automattic Wp Super Cache with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Automattic Wp Super Cache
Published: 2021-06-01
Last modified: 2026-06-17

Description

The WP Super Cache WordPress plugin before 1.7.3 did not properly sanitise its wp_cache_location parameter in its settings, which could lead to a Stored Cross-Site Scripting issue.

Frequently asked questions

What is CVE-2021-24329?: The WP Super Cache WordPress plugin before 1.7.3 did not properly sanitise its wp_cache_location parameter in its settings, which could lead to a Stored Cross-Site Scripting issue.
How severe is CVE-2021-24329?: CVE-2021-24329 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24329 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24329?: CVE-2021-24329 affects Automattic Wp Super Cache. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24329?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24329 published?: CVE-2021-24329 was published on 2021-06-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:automattic:wp_super_cache:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Automattic Wp Super Cache

CVE-2013-2010 — Critical (CVSS 9.8): WordPress W3 Total Cache Plugin 0.9.2.8 has a Remote PHP Code Execution Vulnerability
CVE-2013-2009 — High (CVSS 8.8): WordPress WP Super Cache Plugin 1.2 has Remote PHP Code Execution
CVE-2021-24312 — High (CVSS 7.2): The parameters $cache_path, $wp_cache_debug_ip, $wp_super_cache_front_page_text, $cache_scheduled_time,…
CVE-2021-24209 — High (CVSS 7.2): The WP Super Cache WordPress plugin before 1.7.2 was affected by an authenticated (admin+) RCE in the settings page due…
CVE-2013-2008 — Medium (CVSS 6.1): WordPress Super Cache Plugin 1.3 has XSS.

All CVEs affecting Automattic Wp Super Cache →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →