How severe is CVE-2021-24409?

CVE-2021-24409 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24409?

CVE-2021-24409 affects Plugin-planet Prismatic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24409?

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

When was CVE-2021-24409 published?

CVE-2021-24409 was published on 2021-07-12 and last updated on 2026-06-17.

CVE-2021-24409

CVE-2021-24409 is a medium-severity vulnerability in Plugin-planet Prismatic with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Plugin-planet Prismatic
Published: 2021-07-12
Last modified: 2026-06-17

Description

The Prismatic WordPress plugin before 2.8 does not escape the 'tab' GET parameter before outputting it back in an attribute, leading to a reflected Cross-Site Scripting issue which will be executed in the context of a logged in administrator

Frequently asked questions

What is CVE-2021-24409?: The Prismatic WordPress plugin before 2.8 does not escape the 'tab' GET parameter before outputting it back in an attribute, leading to a reflected Cross-Site Scripting issue which will be executed in the context of a logged in administrator
How severe is CVE-2021-24409?: CVE-2021-24409 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24409?: CVE-2021-24409 affects Plugin-planet Prismatic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24409 published?: CVE-2021-24409 was published on 2021-07-12 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/ae3cd3ed-aecd-4d8c-8a2b-2936aaaef0cf

Affected products (1)

cpe:2.3:a:plugin-planet:prismatic:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Plugin-planet Prismatic

CVE-2021-24408 — Medium (CVSS 5.4): The Prismatic WordPress plugin before 2.8 does not sanitise or validate some of its shortcode parameters, allowing…

All CVEs affecting Plugin-planet Prismatic →

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 →