CVE-2011-4715

NONECVSS 0.0Elevated
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 9%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Directory traversal vulnerability in cgi-bin/koha/mainpage.pl in Koha 3.4 before 3.4.7 and 3.6 before 3.6.1, and LibLime Koha 4.2 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the KohaOpacLanguage cookie to cgi-bin/opac/opac-main.pl, related to Output.pm.

CVSS v3
—
EG Score
0.0(none)
EPSS
94.8%
KEV
Not listed

Published

December 8, 2011

Last Modified

April 29, 2026

References (18)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 38× 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.

  1. 2026-07-06 16:23 UTCEPSS rescore
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  33. 2026-05-29 06:05 UTCEG score recompute
  34. 2026-05-29 06:04 UTCGHSA enrichment
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  44. 2026-05-24 16:43 UTCEPSS rescore
  45. 2026-05-22 21:15 UTCEPSS rescore
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  48. 2026-05-20 22:37 UTCEPSS rescore
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  54. 2026-05-18 21:29 UTCEPSS rescore
  55. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-18153
    First seen Nov 24, 2011

    LibLime Koha 4.2 - Local File Inclusion

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2011-4715?
CVE-2011-4715 is a none vulnerability published on December 8, 2011. Directory traversal vulnerability in cgi-bin/koha/mainpage.pl in Koha 3.4 before 3.4.7 and 3.6 before 3.6.1, and LibLime Koha 4.2 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the KohaOpacLanguage cookie to cgi-bin/opac/opac-main.pl, related to Output.pm.
When was CVE-2011-4715 disclosed?
CVE-2011-4715 was first published in the National Vulnerability Database on December 8, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-4715 actively exploited?
CVE-2011-4715 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-4715?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4715, 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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