CVE-2013-2057: YaBB through 2.5.2: 'guestlanguage' Cookie Parameter Local File Include Vulnerability

Q: How do I fix CVE-2013-2057?

yabb: upgrade to newer than 2.5.2. Exact commands for each OS are on this page.

Q: Is CVE-2013-2057 being exploited?

CVE-2013-2057 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2013-2057 affect?

CVE-2013-2057 affects yabb. Severity is critical (CVSS 9.8). YaBB through 2.5.2: 'guestlanguage' Cookie Parameter Local File Include Vulnerability

Q: How urgent is CVE-2013-2057?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2013-2057 is a critical-severity flaw (CVSS 9.8) affecting yabb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

YaBB through 2.5.2: 'guestlanguage' Cookie Parameter Local File Include Vulnerability

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-434
Published	2020-02-11
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: yabb

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-11 18:15 UTCPublished CVE record published
2026-06-16 23:52 UTCUpdated Record last modified

yabb yabb UPGRADE

Affected: <= 2.5.2

Fixed in: newer than 2.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy yabb || rpm -q yabb || yabb --version

2. UPGRADE to newer than 2.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yabb

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yabb

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-2057?

yabb: upgrade to newer than 2.5.2. Exact commands for each OS are on this page.

Is CVE-2013-2057 being exploited?

CVE-2013-2057 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-2057 affect?

CVE-2013-2057 affects yabb. Severity is critical (CVSS 9.8). YaBB through 2.5.2: 'guestlanguage' Cookie Parameter Local File Include Vulnerability

How urgent is CVE-2013-2057?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

References

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