CVE-2021-24437
CVE-2021-24437 is a medium-severity vulnerability in Realfavicongenerator Favicon By Realfavicongenerator 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: 1% (53rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Realfavicongenerator Favicon By Realfavicongenerator
- Published:
- Last modified:
Description
The Favicon by RealFaviconGenerator WordPress plugin through 1.3.20 does not sanitise or escape one of its parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting (XSS) which is executed in the context of a logged administrator.
Frequently asked questions
- What is CVE-2021-24437?
- The Favicon by RealFaviconGenerator WordPress plugin through 1.3.20 does not sanitise or escape one of its parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting (XSS) which is executed in the context of a logged administrator.
- How severe is CVE-2021-24437?
- CVE-2021-24437 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-2021-24437 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-24437?
- CVE-2021-24437 affects Realfavicongenerator Favicon By Realfavicongenerator. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-24437?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-24437 published?
- CVE-2021-24437 was published on 2021-08-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:realfavicongenerator:favicon_by_realfavicongenerator:*:*:*:*:*:wordpress:*:*
More vulnerabilities in Realfavicongenerator Favicon By Realfavicongenerator
- CVE-2022-0471 — Medium (CVSS 6.1): The Favicon by RealFaviconGenerator WordPress plugin before 1.3.23 does not properly sanitise and escape the…
- CVE-2015-10116 — Medium (CVSS 4.3): A vulnerability classified as problematic has been found in RealFaviconGenerator Favicon Plugin up to 1.2.12 on…
All CVEs affecting Realfavicongenerator Favicon By Realfavicongenerator →
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 →