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TI-2026-73901 Aliases CVE-2026-88998GHSA-2xc5-5wv2-x948

Payment notification forgery in Tickera lets attackers mark orders paid

Priority LOW 29CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-345.

Summary

The Tickera WordPress plugin before 3.6.0.4 does not correctly verify the integrity of incoming payment notifications, so a validated signature does not cover the order or the amount. Unauthenticated attackers can forge a payment confirmation and mark arbitrary orders as paid without paying. The flaw is tracked as CWE-345.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Tickera WordPress plugin before 3.6.0.4 does not correctly verify the integrity of incoming payment notifications, and the validated signature does not cover the order or the amount, allowing unauthenticated attackers to forge a payment confirmation and mark arbitrary orders as paid without paying.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00149 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Tickera (Unknown): 3.6.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownTickerabefore 3.6.0.43.6.0.4Patch availableCNA
  • Tickera VendorUnknown Affected before 3.6.0.4 Fixed in 3.6.0.4 Patch available CNA

Remediation

Update Tickera to version 3.6.0.4 or later, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Tickera (Unknown) Fixed in 3.6.0.4

Timeline

  1. 2026-10-14 Threatist record created from CVE-2026-88998
  2. 2026-10-14 Weakness changed · CISA ADP
  3. 2026-10-14 CISA SSVC decision points changed
  4. 2026-10-14 Alias added: GHSA-2xc5-5wv2-x948

References

Exploit 1

Sources

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