CVE-2013-2240: lib/flowplayer.swf.php in Gallery 3 before 3.0.9 does not properly remove query fragments, which allows remote

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HIGH 7.5DOWNGRADE

CVE-2013-2240 is a high-severity flaw (CVSS 7.5) affecting gallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

lib/flowplayer.swf.php in Gallery 3 before 3.0.9 does not properly remove query fragments, which allows remote attackers to have an unspecified impact via a replay attack, a different vulnerability than CVE-2013-2138.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2013-10-10
Last modified	2026-06-16

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

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

Am I affected?

Timeline

2013-10-10 00:55 UTCPublished CVE record published
2026-06-16 23:53 UTCUpdated Record last modified

menalto gallery DOWNGRADE

Affected: 3.0 · 3.0.1 · 3.0.2 · 3.0.3 · 3.0.4 · 3.0.5 · 3.0.6 · 3.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison gallery sudo apt install gallery=<VERSION_BEFORE_3.0> sudo apt-mark hold gallery

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list gallery sudo dnf downgrade gallery-<VERSION_BEFORE_3.0> sudo dnf versionlock add gallery

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2013-2240?

gallery: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-2240 being exploited?

CVE-2013-2240 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-2013-2240 affect?

CVE-2013-2240 affects gallery. Severity is high (CVSS 7.5). lib/flowplayer.swf.php in Gallery 3 before 3.0.9 does not properly remove query fragments, which allows remote attackers to have an unspecified impact via a replay attack, a different vulnerability than CVE-2013-2138.

How urgent is CVE-2013-2240?

Priority 51/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

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References

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