CVE-2013-4422: SQL injection vulnerability in Quassel IRC before 0.9.1, when Qt 4.8.5 or later and PostgreSQL 8.2 or later ar

Q: How do I fix CVE-2013-4422?

quassel irc: upgrade to newer than 0.9.0. Exact commands for each OS are on this page.

Q: Is CVE-2013-4422 being exploited?

CVE-2013-4422 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-2013-4422 affect?

CVE-2013-4422 affects quassel irc. Severity is medium (CVSS 6.8). SQL injection vulnerability in Quassel IRC before 0.9.1, when Qt 4.8.5 or later and PostgreSQL 8.2 or later are used, allows remote attackers to execute arbitrary SQL commands via a \ (backslash) in a message.

Q: How urgent is CVE-2013-4422?

Priority 44/100. No elevated risk signals yet.

This month

MEDIUM 6.8UPGRADE

CVE-2013-4422 is a medium-severity flaw (CVSS 6.8) affecting quassel irc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in Quassel IRC before 0.9.1, when Qt 4.8.5 or later and PostgreSQL 8.2 or later are used, allows remote attackers to execute arbitrary SQL commands via a \ (backslash) in a message.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-89
Published	2013-10-23
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: quassel-irc

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

Am I affected?

Timeline

2013-10-23 16:54 UTCPublished CVE record published
2026-06-16 23:57 UTCUpdated Record last modified

quassel-irc quassel irc UPGRADE

Affected: <= 0.9.0 · 0.1.0 · 0.3.0 · 0.3.0.1 · 0.3.0.2 · 0.3.0.3 · 0.3.1 · 0.4.0

Fixed in: newer than 0.9.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy quassel-irc || rpm -q quassel-irc || quassel-irc --version

2. UPGRADE to newer than 0.9.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade quassel-irc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quassel-irc

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-2013-4422?

quassel irc: upgrade to newer than 0.9.0. Exact commands for each OS are on this page.

Is CVE-2013-4422 being exploited?

CVE-2013-4422 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-2013-4422 affect?

CVE-2013-4422 affects quassel irc. Severity is medium (CVSS 6.8). SQL injection vulnerability in Quassel IRC before 0.9.1, when Qt 4.8.5 or later and PostgreSQL 8.2 or later are used, allows remote attackers to execute arbitrary SQL commands via a \ (backslash) in a message.

How urgent is CVE-2013-4422?

Priority 44/100. No elevated risk signals yet.

Software pages

PostgreSQL vulnerabilities

Related CVEs

CVE-2014-8483 MEDIUM 5.0 MITIGATE MITIGATE The blowfishECB function in core/cipher.cpp in Quassel IRC 0.10.0 allows remote attackers to cause a denial of
CVE-2013-6404 MEDIUM 4.0 UPGRADE Quassel core (server daemon) in Quassel IRC before 0.9.2 does not properly verify the user ID when accessing u
CVE-2010-3443 MEDIUM 5.0 UPGRADE MITIGATE ctcphandler.cpp in Quassel before 0.6.3 and 0.7.x before 0.7.1 allows remote attackers to cause a denial of se

References

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