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TI-2008-05537 Aliases CVE-2008-5840GHSA-mwmq-3358-vg7q

PHP iCalendar 2.24 and earlier allows remote attackers to bypass authentication by…

Priority LOW 38CWE-264Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

PHP iCalendar 2.24 and earlier allows remote attackers to bypass authentication by setting the phpicalendar and phpicalendar_login cookies to 1.

Why it matters now

EPSS 0.03017 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 17

CPEVersionsRoleVendor
cpe:2.3:a:phpicalendar:phpicalendar:*:*:*:*:*:*:*:*up to 2.24VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:0.7:*:*:*:*:*:*:*0.7VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:0.8:*:*:*:*:*:*:*0.8VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:0.9:*:*:*:*:*:*:*0.9VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:0.9.5:*:*:*:*:*:*:*0.9.5VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:1.0:*:*:*:*:*:*:*1.0VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:1.1:*:*:*:*:*:*:*1.1VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.0:beta:*:*:*:*:*:*2.0 betaVulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.0.1:*:*:*:*:*:*:*2.0.1VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.0c:*:*:*:*:*:*:*2.0cVulnerablePhpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:*:*:*:*:*:*:*:* Versions up to 2.24 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:0.7:*:*:*:*:*:*:* Versions 0.7 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:0.8:*:*:*:*:*:*:* Versions 0.8 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:0.9:*:*:*:*:*:*:* Versions 0.9 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:0.9.5:*:*:*:*:*:*:* Versions 0.9.5 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.0:beta:*:*:*:*:*:* Versions 2.0 beta Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.0c:*:*:*:*:*:*:* Versions 2.0c Vulnerable ·Phpicalendar
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:phpicalendar:phpicalendar:2.1:*:*:*:*:*:*:*2.1VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.2:*:*:*:*:*:*:*2.2VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.21:*:*:*:*:*:*:*2.21VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.22:*:*:*:*:*:*:*2.22VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.23:*:*:*:*:*:*:*2.23VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar:2.23:rc1:*:*:*:*:*:*2.23 rc1VulnerablePhpicalendar
cpe:2.3:a:phpicalendar:phpicalendar2.0:alpha_test:*:*:*:*:*:*:*alpha_testVulnerablePhpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.2:*:*:*:*:*:*:* Versions 2.2 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.21:*:*:*:*:*:*:* Versions 2.21 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.22:*:*:*:*:*:*:* Versions 2.22 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.23:*:*:*:*:*:*:* Versions 2.23 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar:2.23:rc1:*:*:*:*:*:* Versions 2.23 rc1 Vulnerable ·Phpicalendar
  • cpe:2.3:a:phpicalendar:phpicalendar2.0:alpha_test:*:*:*:*:*:*:* Versions alpha_test Vulnerable ·Phpicalendar

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-5840
  2. 2026-10-03 Alias added: GHSA-mwmq-3358-vg7q

References

Exploit 1

Advisory 1

  • TI-2008-05663 admin/index.php in PHP iCalendar 2.3.4, 2.24, and earlier does not require administrative… CVSS 2.0HIGH 7.5
  • TI-2008-05664 Directory traversal vulnerability in print.php in PHP iCalendar 2.24 and earlier allows… CVSS 2.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences