Is CVE-2011-4958 being actively exploited?

CVE-2011-4958 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4958?

CVE-2011-4958 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2011-4958

MEDIUM · CVSS 4.3EPSS 4.3%EU EUVD

Cross-site scripting (XSS) vulnerability in the process function in SSViewer.php in SilverStripe before 2.3.13 and 2.4.x before 2.4.6 allows remote attackers to inject arbitrary web script or HTML via the QUERY_STRING to template placeholders, as demonstrated by a request to (1) admin/reports/, (2) admin/comments/, (3) admin/, (4) admin/show/, (5) admin/assets/, and (6) admin/security/.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
EPSS score: 4.3% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-4865)
Published: April 8, 2014
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-4865 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe
silverstripe / silverstripe

References

http://doc.silverstripe.org/sapphire/en/trunk/changelogs/2.3.12
http://doc.silverstripe.org/sapphire/en/trunk/changelogs/2.4.6
http://osvdb.org/76258
http://secunia.com/advisories/46390(Vendor Advisory)
http://www.rul3z.de/advisories/SSCHADV2011-024.txt(Exploit)
http://www.securityfocus.com/archive/1/520050/100/0/threaded
https://github.com/silverstripe/sapphire/commit/16c3235(Exploit, Patch)
https://github.com/silverstripe/sapphire/commit/52a895f(Exploit, Patch)
https://github.com/silverstripe/sapphire/commit/bdd6391(Exploit, Patch)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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