CVE-2021-23125
CVE-2021-23125 is a medium-severity vulnerability in Joomla Joomla! 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% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Joomla Joomla!
- Published:
- Last modified:
Description
An issue was discovered in Joomla! 3.1.0 through 3.9.23. The lack of escaping of image-related parameters in multiple com_tags views cause lead to XSS attack vectors.
Frequently asked questions
- What is CVE-2021-23125?
- An issue was discovered in Joomla! 3.1.0 through 3.9.23. The lack of escaping of image-related parameters in multiple com_tags views cause lead to XSS attack vectors.
- How severe is CVE-2021-23125?
- CVE-2021-23125 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-2021-23125 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-23125?
- CVE-2021-23125 affects Joomla Joomla!. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-23125?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-23125 published?
- CVE-2021-23125 was published on 2021-01-12 and last updated on 2026-06-17.
References
- https://developer.joomla.org/security-centre/838-20210103-core-xss-in-com-tags-image-parameters.html
Affected products (1)
- cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
More vulnerabilities in Joomla Joomla!
- CVE-2026-48904 — Critical (CVSS 9.8): An improper access check allows privelege escalation through the com_users group editing webservice endpoint.
- CVE-2026-48902 — Critical (CVSS 9.8): The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't…
- CVE-2026-48899 — Critical (CVSS 9.8): An improper access check allows privilege escalation through the com_users batch task.
- CVE-2026-48898 — Critical (CVSS 9.8): An improper access check allows privilege escalation through the com_users batch task.
- CVE-2026-40383 — Critical (CVSS 9.8): An improper validation of user-supplied input leads to a local file inclusion vulnerability.
- CVE-2026-35223 — Critical (CVSS 9.8): An improper access check allows unauthorized access to com_config webservice endpoints.
All CVEs affecting Joomla Joomla! →
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 →