CVE-2013-5983: Multiple cross-site scripting (XSS) vulnerabilities in GuppY before 4.6.28 allow remote attackers to inject ar

Q: How do I fix CVE-2013-5983?

guppy: upgrade to newer than 4.6.27. Exact commands for each OS are on this page.

Q: Is CVE-2013-5983 being exploited?

CVE-2013-5983 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-2013-5983 affect?

CVE-2013-5983 affects guppy. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in GuppY before 4.6.28 allow remote attackers to inject arbitrary web script or HTML via the (1) "an" parameter to agenda.php or (2) cat parameter to mobile/thread.php.

Q: How urgent is CVE-2013-5983?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2013-5983 is a medium-severity flaw (CVSS 4.3) affecting guppy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in GuppY before 4.6.28 allow remote attackers to inject arbitrary web script or HTML via the (1) "an" parameter to agenda.php or (2) cat parameter to mobile/thread.php.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-02-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: guppy

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

Am I affected?

Timeline

2014-02-06 16:10 UTCPublished CVE record published
2026-06-16 23:59 UTCUpdated Record last modified

guppy guppy UPGRADE

Affected: <= 4.6.27 · 2.4 · 2.4_p1 · 2.4_p3 · 2.4_p4 · 4.0 · 4.5 · 4.5.3

Fixed in: newer than 4.6.27

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.6.27 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade guppy

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-2013-5983?

guppy: upgrade to newer than 4.6.27. Exact commands for each OS are on this page.

Is CVE-2013-5983 being exploited?

CVE-2013-5983 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-2013-5983 affect?

CVE-2013-5983 affects guppy. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in GuppY before 4.6.28 allow remote attackers to inject arbitrary web script or HTML via the (1) "an" parameter to agenda.php or (2) cat parameter to mobile/thread.php.

How urgent is CVE-2013-5983?

Priority 36/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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References

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