How severe is CVE-2015-6737?

CVE-2015-6737 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-6737 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6737?

CVE-2015-6737 affects Widgets Project Widgets. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6737?

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

When was CVE-2015-6737 published?

CVE-2015-6737 was published on 2015-09-01 and last updated on 2026-06-17.

CVE-2015-6737

CVE-2015-6737 is a medium-severity vulnerability in Widgets Project Widgets with a CVSS 2.0 base score of 4.3. 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 2.0 base score 4.3)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Widgets Project Widgets
Published: 2015-09-01
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the Widgets extension for MediaWiki allows remote attackers to inject arbitrary web script or HTML via vectors involving base64 encoded content.

Frequently asked questions

What is CVE-2015-6737?: Cross-site scripting (XSS) vulnerability in the Widgets extension for MediaWiki allows remote attackers to inject arbitrary web script or HTML via vectors involving base64 encoded content.
How severe is CVE-2015-6737?: CVE-2015-6737 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-6737 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6737?: CVE-2015-6737 affects Widgets Project Widgets. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6737?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6737 published?: CVE-2015-6737 was published on 2015-09-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:widgets_project:widgets:-:*:*:*:*:mediawiki:*:*

More vulnerabilities in Widgets Project Widgets

CVE-2020-9382 — Medium (CVSS 5.4): An issue was discovered in the Widgets extension through 1.4.0 for MediaWiki. Improper title sanitization allowed for…

All CVEs affecting Widgets Project Widgets →

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 →