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TI-2018-08430 Aliases CVE-2018-11773GHSA-wmc6-cwxh-j3rp

Improper input validation in Apache VCL

Priority MEDIUM 46CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

Apache VCL versions 2.1 through 2.5 do not properly validate form input when processing a submitted block allocation. The form data is then used as an argument to the php built in function strtotime. This allows for an attack against the underlying implementation of that function. The implementation of strtotime at the time the issue was discovered appeared to be resistant to a malicious attack. However, all VCL systems running versions earlier than 2.5.1 should be upgraded or patched. This vulnerability was found and reported to the Apache VCL project by ADLab of Venustech.

Why it matters now

EPSS 0.02103 81st percentileScored 2026-11-07
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
ApacheVCL2.1 through 2.5—No fix listedCNA
  • VCL VendorApache Affected 2.1 through 2.5 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:virtual_computing_lab:*:*:*:*:*:*:*:*2.1 – 2.5VulnerableApache
  • cpe:2.3:a:apache:virtual_computing_lab:*:*:*:*:*:*:*:* Versions 2.1 – 2.5 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-11773
  2. 2026-10-03 Alias added: GHSA-wmc6-cwxh-j3rp

References

Other 2

Sources

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