CVE-2005-4520: Unspecified "port injection" vulnerabilities in filters in Mantis 1.0.0rc3 and earlier have unknown impact and

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MEDIUM 5.0DOWNGRADE

CVE-2005-4520 is a medium-severity flaw (CVSS 5.0) affecting mantis. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified "port injection" vulnerabilities in filters in Mantis 1.0.0rc3 and earlier have unknown impact and attack vectors. NOTE: due to a lack of relevant details in the vendor changelog, which is the source of this description, it is unclear whether this is a duplicate of another CVE.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Published	2005-12-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mantis

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

Am I affected?

Timeline

2005-12-28 01:03 UTCPublished CVE record published
2026-06-16 22:18 UTCUpdated Record last modified

mantis mantis DOWNGRADE

Affected: 1.0.0_rc1 · 1.0.0_rc2 · 1.0.0_rc3 · 1.0.0a1 · 1.0.0a2 · 1.0.0a3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0a1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.0a1 (Debian / Ubuntu)

apt-cache madison mantis sudo apt install mantis=<VERSION_BEFORE_1.0.0a1> sudo apt-mark hold mantis

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

dnf --showduplicates list mantis sudo dnf downgrade mantis-<VERSION_BEFORE_1.0.0a1> sudo dnf versionlock add mantis

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-2005-4520?

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

Is CVE-2005-4520 being exploited?

CVE-2005-4520 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-2005-4520 affect?

CVE-2005-4520 affects mantis. Severity is medium (CVSS 5.0). Unspecified "port injection" vulnerabilities in filters in Mantis 1.0.0rc3 and earlier have unknown impact and attack vectors. NOTE: due to a lack of relevant details in the vendor changelog, which is the source of this description, it is

How urgent is CVE-2005-4520?

Priority 43/100. Public exploit reference

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References

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