EUVD-2026-89838
GHSA-8cvr-qhj2-37xm
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Remote low-complexity object injection reachable by a low-privilege Contributor account without user interaction, yielding full compromise via a deserialization gadget chain.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Contributor PHP Object Injection in 10Web Booster - Website speed optimization, Cache & Page Speed optimizer <= 2.33.6 versions.
AnalysisAI
PHP object injection in the 10Web Booster WordPress plugin (versions up to 2.33.6) allows an authenticated Contributor to inject a malicious PHP object, potentially leading to remote code execution if a suitable gadget chain is present. The vulnerability is network-exploitable, requires no user interaction, and has a CVSS score of 8.8, but exploitation depends on the availability of a POP chain within the plugin or other installed components. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated WordPress account at Contributor role (PR:L) on a site running 10Web Booster - Website Speed Optimization, Cache & Page Speed optimizer version 2.33.6 or earlier; no user interaction is needed (UI:N) and the attack is remote over the network (AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects a network-exploitable, low-complexity PHP Object Injection requiring only low-level authentication and no user interaction, with full confidentiality, integrity, and availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the 10Web Booster plugin to a version later than 2.33.6; the input data does not specify an exact fixed version, but the vulnerability is patched in subsequent releases. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress instances running 10Web Booster versions up to 2.33.6, disable or remove the plugin where non-essential, and review Contributor-level accounts for unexpected activity. …
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View allSame technique Deserialization
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External POC / Exploit Code
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