EUVD-2026-86591
GHSA-584m-jf9m-5hp3
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Network-reachable stored XSS requiring a subscriber account (PR:L), no interaction to store; execution in other users' browsers is a scope change (S:C) with limited C/I and no availability impact.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
3DescriptionCVE.org
The wpForo Forum plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'telegram' profile field in versions up to, and including, 3.1.6. This is due to insufficient input sanitization and output escaping in the profile_update action - the raw $_POST['data'] array is copied into a $custom_fields variable before validate() and sanitize() run, both of which operate only on a parallel $user reference, leaving $custom_fields unsanitized when it is persisted via update_custom_fields(); on render, wpforo_decode() reverses the entity encoding and the value is echoed without escaping in field_wrap_profile(). This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AnalysisAI
Stored cross-site scripting (XSS) in the wpForo Forum plugin for WordPress, affecting versions up to and including 3.1.6, allows authenticated attackers with subscriber-level access to inject arbitrary JavaScript through the 'telegram' profile field, which executes when any user views the injected profile page. This is a moderate-severity issue (CVSS 6.4) that requires an account on the target site, a condition trivially met if open registration is enabled; no public exploit identified at time of analysis. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated account with subscriber-level access or above on a WordPress site running wpForo Forum <= 3.1.6 (PR:L); on forums with open self-registration this prerequisite is trivially met. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but moderate-priority issue, not an overhyped high-CVSS finding. … 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 | No vendor-released patch version is explicitly identified in the provided data, but an upstream fix is available via WordPress plugin Trac changeset 3706608 (https://plugins.trac.wordpress.org/changeset?reponame=&old=3706608%40wpforo&new=3706608%40wpforo). … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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