CVE-2011-3613: An issue exists in Vanilla Forums before 2.0.17.9 due to the way cookies are handled.

Q: How do I fix CVE-2011-3613?

vanilla: upgrade to 2.0.17.9. Exact commands for each OS are on this page.

Q: Is CVE-2011-3613 being exploited?

CVE-2011-3613 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-2011-3613 affect?

CVE-2011-3613 affects vanilla. Severity is high (CVSS 7.5). An issue exists in Vanilla Forums before 2.0.17.9 due to the way cookies are handled.

Q: How urgent is CVE-2011-3613?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2011-3613 is a high-severity flaw (CVSS 7.5) affecting vanilla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue exists in Vanilla Forums before 2.0.17.9 due to the way cookies are handled.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-200
Published	2020-01-22
Last modified	2026-06-16

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

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

Am I affected?

Timeline

2020-01-22 18:15 UTCPublished CVE record published
2026-06-16 23:33 UTCUpdated Record last modified

vanillaforums vanilla UPGRADE

Affected: < 2.0.17.9

Fixed in: 2.0.17.9

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.0.17.9 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vanilla

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-2011-3613?

vanilla: upgrade to 2.0.17.9. Exact commands for each OS are on this page.

Is CVE-2011-3613 being exploited?

CVE-2011-3613 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-2011-3613 affect?

CVE-2011-3613 affects vanilla. Severity is high (CVSS 7.5). An issue exists in Vanilla Forums before 2.0.17.9 due to the way cookies are handled.

How urgent is CVE-2011-3613?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-8825 MEDIUM 5.4 DOWNGRADE index.php?p=/dashboard/settings/branding in Vanilla 2.6.3 allows stored XSS.
CVE-2019-9889 LOW 2.7 UPGRADE In Vanilla before 2.6.4, a flaw exists within the getSingleIndex function of the AddonManager class
CVE-2018-19499 HIGH 7.2 UPGRADE Vanilla before 2.5.5 and 2.6.x before 2.6.2 allows Remote Code Execution because authenticated administrators
CVE-2018-18903 CRITICAL 9.8 UPGRADE Vanilla 2.6.x before 2.6.4 allows remote code execution.
CVE-2018-17571 MEDIUM 6.1 UPGRADE Vanilla before 2.6.1 allows XSS via the email field of a profile.

References

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