CVE-2005-4521: n/a vulnerability

CVE-2005-4521: CRLF injection vulnerability in Mantis 1.0.0rc3 and earlier allows remote attackers to modify HTTP headers...

CRLF injection vulnerability in Mantis 1.0.0rc3 and earlier allows remote attackers to modify HTTP headers and conduct HTTP response splitting attacks via (1) the return parameter in login_cookie_test.php and (2) ref parameter in login_select_proj_page.php.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 23:46 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mantis issue where attacker-controlled URL parameters could alter HTTP response headers. In practical terms, vulnerable public Mantis sites could be exposed to response-splitting attacks that may affect users through redirects, cache poisoning, or browser-side trust decisions. Exposure is likely limited to legacy Mantis deployments at version 1.0.0rc3 or earlier, especially internet-facing bug trackers. The bundle does not provide CPEs, CVSS, or a confirmed current affected product list. Prioritize discovery over emergency response. This is a 2005 remotely reachable web flaw with no active exploitation evidence in the bundle, but any internet-facing legacy Mantis instance should be upgraded or isolated promptly. Mitigation focus: Inventory Mantis deployments and identify versions at or below 1.0.0rc3.; Review SourceForge, Debian, Gentoo, or vendor guidance for the corrected release path.; Upgrade legacy Mantis instances according to trusted vendor or distribution advisories..

Prepared: Jun 29, 2026, 15:35 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 28, 2005, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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