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Vulnerabilities

Vulnerability · CVE-2004-1315

phpBB 2.x before 2.0.11viewtopic.php Arbitrary PHP Code Execution

Published Jun 20, 2017 · catalog updated Jun 20, 2017 · phpBB 2.x before 2.0.11viewtopic.php

Patch now

CVE-2004-1315 is in the CISA known-exploited catalog. Confirm phpBB 2.x before 2.0.11viewtopic.php against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (phpBB 2.x before 2.0.11viewtopic.php).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
72.54%
Remediation
Remediation guidance
Affected products
vendor phpbb_group phpbb

viewtopic.php in phpBB 2.x before 2.0.11 improperly URL decodes the highlight parameter when extracting words and phrases to highlight, which allows remote attackers to execute arbitrary PHP code by double-encoding the highlight value so that special characters are inserted into the result, which is then processed by PHP exec, as exploited by the Santy.A worm.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor phpbb_group phpbbversion unspecified

How to fix CVE-2004-1315

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2004-1315 is in the CISA known-exploited catalog. Confirm phpBB 2.x before 2.0.11viewtopic.php against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 72.54%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 20, 2017 · VulnCheck KEV

    Detected

    viewtopic.php in phpBB 2.x before 2.0.11 improperly URL decodes the highlight parameter when extracting words and phrases to highlight, which allows remote attackers to execute arbitrary PHP code by double-encoding the highlight value so that special characters are inserted into the result, which is then processed by PHP exec, as exploited by the Santy.A worm.

  2. Jun 20, 2017 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2004-1315

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2004-1315

    30-day exploitation probability 72.5%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2004-1315

    viewtopic.php in phpBB 2.x before 2.0.11 improperly URL decodes the highlight parameter when extracting words and phrases to highlight, which allows remote attackers to execute arbitrary PHP code by double-encoding the highlight value so that special characters are inserted into

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.