CVE-2011-3611: A File Inclusion vulnerability exists in act parameter to admin.php in UseBB before 1.0.12.

Q: How do I fix CVE-2011-3611?

usebb: upgrade to 1.0.12. Exact commands for each OS are on this page.

Q: Is CVE-2011-3611 being exploited?

CVE-2011-3611 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-2011-3611 affect?

CVE-2011-3611 affects usebb. Severity is high (CVSS 7.2). A File Inclusion vulnerability exists in act parameter to admin.php in UseBB before 1.0.12.

Q: How urgent is CVE-2011-3611?

Priority 51/100. High severity; Public exploit reference

This month

HIGH 7.2UPGRADE

CVE-2011-3611 is a high-severity flaw (CVSS 7.2) affecting usebb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A File Inclusion vulnerability exists in act parameter to admin.php in UseBB before 1.0.12.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-20
Published	2020-01-22
Last modified	2026-06-16

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

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 17:15 UTCPublished CVE record published
2026-06-16 23:33 UTCUpdated Record last modified

usebb usebb UPGRADE

Affected: < 1.0.12

Fixed in: 1.0.12

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.0.12 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade usebb

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-2011-3611?

usebb: upgrade to 1.0.12. Exact commands for each OS are on this page.

Is CVE-2011-3611 being exploited?

CVE-2011-3611 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-2011-3611 affect?

CVE-2011-3611 affects usebb. Severity is high (CVSS 7.2). A File Inclusion vulnerability exists in act parameter to admin.php in UseBB before 1.0.12.

How urgent is CVE-2011-3611?

Priority 51/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2011-3612 HIGH 8.8 UPGRADE Cross-Site Request Forgery (CSRF) vulnerability exists in panel.php in UseBB before 1.0.12.

References

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