Subscriber listing tampering via reusable action nonce
Published Jul 1, 2026 · Updated Jul 1, 2026
Missing authorization in the StylemixThemes Motors plugin 1.4.111 and earlier allows remote authenticated users to alter others' vehicle listings. The stm_mark_as_sold_car handler validates a reusable action nonce but accepts an arbitrary post ID without confirming listing ownership. Subscriber access and an attacker-owned active listing are required to obtain the nonce; replay marks a victim listing sold and removes its special_car featured metadata.
Summary
What happened
Missing authorization in the StylemixThemes Motors plugin 1.4.111 and earlier allows remote authenticated users to alter others' vehicle listings. The stm_mark_as_sold_car handler validates a reusable action nonce but accepts an arbitrary post ID without confirming listing ownership. Subscriber access and an attacker-owned active listing are required to obtain the nonce; replay marks a victim listing sold and removes its special_car featured metadata.
The record
- CVE
- CVE-2026-12435
- Published
- Jul 1, 2026
- Updated
- Jul 1, 2026
- Vendor
- StylemixThemes
- Product
- Motors - Car Dealership & Classified Listings Plugin
- Classifications
- CWE-862, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 1, 2026CVE publishedPublication date reported by the CVE source.
- Jul 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.4.111
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Atomic Edge CVE-2026-12435 PHP proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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