EUVD-2026-42171
GHSA-7p67-589v-28jw
Severity by source
AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Administrator credentials and a non-default platform configuration are required (PR:H, AC:H); stored XSS executes cross-user in victim browsers justifying S:C, with limited confidentiality and integrity impact and no availability impact.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Chatra Live Chat + ChatBot + Cart Saver plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
AnalysisAI
Stored cross-site scripting in the Chatra Live Chat + ChatBot + Cart Saver WordPress plugin (all versions ≤ 1.0.12) enables authenticated attackers holding administrator-level credentials to persist arbitrary JavaScript payloads through admin settings fields that lack input sanitization and output escaping. Injected scripts execute silently in the browsers of any user who visits an affected page, enabling session hijacking, credential harvesting, or malicious redirection. Exploitation is gated behind two environmental preconditions - WordPress multisite mode or explicitly disabled unfiltered_html - and no public exploit code or active exploitation has been identified at time of analysis.
Technical ContextAI
The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation), specifically a persistent/stored XSS variant. The vulnerable code is located in chatra.php at lines 33 and 61 (confirmed via WordPress plugin Trac at plugins.trac.wordpress.org/browser/chatra-live-chat/tags/1.0.12/chatra.php), where admin-controlled settings values are rendered into page output without adequate sanitization or escaping. The affected component is identified by CPE cpe:2.3:a:chatra:chatra_live_chat_+_chatbot_+_cart_saver covering all versions through 1.0.12. WordPress normally grants the unfiltered_html capability to site administrators on single-site installs, which allows raw HTML insertion and masks this class of flaw. The vulnerability surfaces when that capability is withheld - as is the default for non-super-admins on WordPress multisite networks - making the plugin's lack of escaping meaningful rather than redundant.
RemediationAI
No patched version above 1.0.12 is confirmed in the available data - the WordPress plugin Trac references point exclusively to the 1.0.12 source with no fix tag identified. Administrators should monitor the WordPress plugin repository and the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/75da660b-04c7-4f15-b49d-2aa320ef5b4b?source=cve for a patched release and apply it immediately upon availability. As an interim compensating control, deactivating or uninstalling the Chatra plugin eliminates the attack surface entirely with no functional trade-off beyond loss of the chat feature. For multisite operators who cannot remove the plugin, auditing and minimizing the set of accounts with site-administrator or super-administrator roles reduces the pool of principals capable of exploiting this flaw. On single-site installations, verifying that administrators retain the unfiltered_html capability (the WordPress default) prevents exploitation, though doing so grants admins broader HTML insertion rights - a trade-off acceptable for trusted administrators.
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External POC / Exploit Code
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