CVE-2005-3156: Directory traversal vulnerability in printfaq.php in EasyGuppy (Guppy for Windows) 4.5.4 and 4.5.5 allows remo

Routine

MEDIUM 4.3DOWNGRADE

CVE-2005-3156 is a medium-severity flaw (CVSS 4.3) affecting easyguppy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in printfaq.php in EasyGuppy (Guppy for Windows) 4.5.4 and 4.5.5 allows remote attackers to read arbitrary files via ".." sequences in the pg parameter, which is cleansed for XSS but not directory traversal.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Published	2005-10-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: easyguppy

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

Am I affected?

Timeline

2005-10-05 23:02 UTCPublished CVE record published
2026-06-16 22:16 UTCUpdated Record last modified

easyguppy easyguppy DOWNGRADE

Affected: 4.5.4 · 4.5.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.5.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.5.4 (Debian / Ubuntu)

apt-cache madison easyguppy sudo apt install easyguppy=<VERSION_BEFORE_4.5.4> sudo apt-mark hold easyguppy

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

dnf --showduplicates list easyguppy sudo dnf downgrade easyguppy-<VERSION_BEFORE_4.5.4> sudo dnf versionlock add easyguppy

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-2005-3156?

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

Is CVE-2005-3156 being exploited?

CVE-2005-3156 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-2005-3156 affect?

CVE-2005-3156 affects easyguppy. Severity is medium (CVSS 4.3). Directory traversal vulnerability in printfaq.php in EasyGuppy (Guppy for Windows) 4.5.4 and 4.5.5 allows remote attackers to read arbitrary files via ".." sequences in the pg parameter, which is cleansed for XSS but not directory traversal

How urgent is CVE-2005-3156?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities · Windows vulnerabilities

References

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