Avventure WordPress theme: Unauthenticated PHP Object Injection
Summary
The Avventure WordPress theme up to and including version 1.1.12 contains a PHP Object Injection vulnerability (CVE-2026-62010, CVSS 9.8 critical). An unauthenticated remote attacker can supply crafted serialized data to the site, which may lead to code execution, SQL injection, path traversal or denial of service, depending on the available gadget chains. The exposure applies to any internet-reachable WordPress site running the theme. No fixed version or vendor advisory was available at the time of research.
Affected
- ThemeREX Avventure WordPress theme, versions <= 1.1.12
- Default product status in the CVE record is inconsistent; rely on the version range above
Fixed in
- Unknown. No fixed version found in any source checked.
Workaround
- Identify all Avventure installations (Appearance > Themes) and check whether the theme is active.
- If the theme is unused, remove it.
- Ask your hosting provider or a virtual-patching WAF to block attacks; confirm with Patchstack whether a mitigation rule exists.
- Keep WordPress core and all plugins up to date and keep offline backups.
Exploitation
- Known exploited (KEV): No.
- EPSS: not yet published.
- Public proof of concept: none found.
- Reported by researcher johska; Patchstack expects mass exploitation campaigns are possible.
Our recommendation
- Inventory all websites for the Avventure theme and prioritise internet-facing sites.
- Replace the theme with a maintained alternative if it is in use, or remove it if it is unused.
- Apply a virtual patch or WAF rule until an official fix is available.
- Monitor for unexpected files, administrator accounts and unusual requests.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack: PHP Object Injection in WordPress Avventure Theme patchstack.com
- Vulners: CVE-2026-62010 vulners.com
- ThreatInt: CVE-2026-62010 cve.threatint.com
- Strix AI: CVE-2026-62010 www.strix.ai
- ThemeForest: Avventure theme themeforest.net
- Beagle Security: WordPress PHP Object Injection beaglesecurity.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 30 Oct 2026, 15:56.
Original description (NVD)
Unauthenticated PHP Object Injection in Avventure <= 1.1.12 versions.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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