CVE-2013-5301: Directory traversal vulnerability in help.php in Trustport Webfilter 5.5.0.2232 allows remote attackers to rea

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HIGH 7.8DOWNGRADE

CVE-2013-5301 is a high-severity flaw (CVSS 7.8) affecting webfilter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in help.php in Trustport Webfilter 5.5.0.2232 allows remote attackers to read arbitrary files via a .. (dot dot) in the hf parameter.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.4% (top 11%)
CISA exploited list	No
Weakness	CWE-22
Published	2013-08-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: trustport

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

Am I affected?

Timeline

2013-08-16 17:55 UTCPublished CVE record published
2026-06-16 23:58 UTCUpdated Record last modified

trustport webfilter DOWNGRADE

Affected: 5.5.0.2232

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.5.0.2232

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.5.0.2232 (Debian / Ubuntu)

apt-cache madison webfilter sudo apt install webfilter=<VERSION_BEFORE_5.5.0.2232> sudo apt-mark hold webfilter

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

dnf --showduplicates list webfilter sudo dnf downgrade webfilter-<VERSION_BEFORE_5.5.0.2232> sudo dnf versionlock add webfilter

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-2013-5301?

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

Is CVE-2013-5301 being exploited?

CVE-2013-5301 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-2013-5301 affect?

CVE-2013-5301 affects webfilter. Severity is high (CVSS 7.8). Directory traversal vulnerability in help.php in Trustport Webfilter 5.5.0.2232 allows remote attackers to read arbitrary files via a .. (dot dot) in the hf parameter.

How urgent is CVE-2013-5301?

Priority 55/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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