Is CVE-2015-2941 in the CISA KEV catalog?

No. CVE-2015-2941 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-2941?

CVE-2015-2941 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-2941?

CVE-2015-2941 has an EPSS score of 2.11% (80th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-2941?

Upgrade mediawiki on debian 11 to 1:1.19.20+dfsg-2.3 or later.

CVE & CISA-KEV Catalog

CVE-2015-2941

MEDIUMEPSS 80th pctl

4.3

CVSS v2

NVD

Description

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM, allows remote attackers to inject arbitrary web script or HTML via an invalid parameter in a wddx format request to api.php, which is not properly handled in an error message, related to unsafe calls to wddx_serialize_value.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

mediawikiDebian

Fixed in:1:1.19.20+dfsg-2.3CVE-2015-2941

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.11%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

Patch1

lists.wikimedia.org

Exploit1

phabricator.wikimedia.org

Other references4

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.