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TI-2026-70438 Aliases CVE-2026-78531GHSA-5568-p4h7-h6jx

Unauthenticated PHP object injection in WordPress Jacqueline theme

Priority MEDIUM 49CWE-502Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

The ThemeREX Jacqueline WordPress theme through 2.22 contains a PHP object injection flaw (CWE-502). The theme deserializes untrusted data, which lets attacker-supplied input create PHP objects. An unauthenticated remote attacker can exploit this without logging in, with high impact on confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Unauthenticated PHP Object Injection in Jacqueline <= 2.22 versions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ThemeREXJacquelineup to 2.22—No fix listedCNA
  • Jacqueline VendorThemeREX Affected up to 2.22 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for Jacqueline.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-78531
  2. 2026-10-11 Alias added: GHSA-5568-p4h7-h6jx

References

Other 1

  • TI-2020-08268 The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the… CVSS 3.1CRITICAL 9.8
  • TI-2024-12489 ThemeREX Addons <= 2.32.3 - Unauthenticated Arbitrary File Upload in trx_addons_uploads_save_data CVSS 3.1CRITICAL 9.8
  • TI-2024-05844 Several WordPress.org Plugins <= Various Versions - Injected Backdoor CVSS 3.1CRITICAL 10.0
  • TI-2026-47321 WordPress FreightCo theme <= 1.1.15 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-46741 WordPress Abelle theme <= 1.22 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-44381 WordPress ThemeREX Addons plugin < 2.45.0 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
See all 237 →

Sources

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