CVE-2015-5521

MEDIUMNVD 4.84.8—

4.8

Cross-site scripting (XSS) vulnerability in BlackCat CMS 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the name in a new group to backend/groups/index.php.

CVSS v3: 4.8
EG Score: 4.8(medium)
EPSS: 47.5%
KEV: Not listed

Published

July 14, 2015

Last Modified

May 6, 2026

References (4)

cve@mitrehttp://packetstormsecurity.com/files/132589/Black-Cat-CMS-1.1.2-Cross-Site-Scripting.html
cve@mitrehttps://github.com/BlackCatDevelopment/BlackCatCMS/issues/408
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/132589/Black-Cat-CMS-1.1.2-Cross-Site-Scripting.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/BlackCatDevelopment/BlackCatCMS/issues/408

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-5521?

CVE-2015-5521 is a medium vulnerability published on July 14, 2015. Cross-site scripting (XSS) vulnerability in BlackCat CMS 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the name in a new group to backend/groups/index.php.

When was CVE-2015-5521 disclosed?

CVE-2015-5521 was first published in the National Vulnerability Database on July 14, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-5521 actively exploited?

CVE-2015-5521 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-5521?

CVE-2015-5521 has a CVSS v3 base score of 4.8 (NVD).

How do I remediate CVE-2015-5521?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5521, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-5521

📅 Published

🔄 Last Modified

🔗 References (4)