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CVE-2025-66200

mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid. This issue affects Apache HTTP Server: from 2.4.7 through 2.4.65. Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:167870ef47879ab276c991ddc08b79c3ee3053911e62951d2dec72da9a4d9621
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"mod_userdir+suexec bypass via AllowOverride FileInfo","lang":"en"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-288","description":"CWE-288 Authentication Bypass Using an Alternate Path or Channel","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/adp/1/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Apache HTTP Server","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"2.4.65","status":"affected","version":"2.4.7","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/adp/1/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"mod_userdir+suexec bypass via AllowOverride FileInfo","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-288","description":"CWE-288 Authentication Bypass Using an Alternate Path or Channel","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2025/12/04/8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://httpd.apache.org/security/vulnerabilities_24.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89fac21a0c8df72c9b16a05433a272dc0b4a05359042560488777471090024de · sha256:07160131b3a5b3cd… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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