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Mallory
Medium

Stored XSS in ConnectWise PSA Time Entry Audit Trail notes (pre-2026.1)

IdentifiersCVE-2026-0695CWE-79· Improper Neutralization of Input…

CVE-2026-0695 is a stored cross-site scripting vulnerability in ConnectWise Professional Services Automation (PSA) affecting versions older than 2026.1. Time Entry notes stored in the Time Entry Audit Trail may be rendered without applying output encoding to certain content. Under specific conditions, this allows attacker-supplied script content embedded in a Time Entry note to be stored and later executed in the context of a victim user’s browser (or PSA client rendering context) when the affected audit-trail content is displayed.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation enables execution of arbitrary script in the context of the victim’s PSA session when viewing the crafted Time Entry Audit Trail entry. This can lead to theft of sensitive data accessible to the victim, unauthorized actions performed as the victim within PSA, and (per the associated advisory context) can be chained with non-HttpOnly session cookies (CVE-2026-0696) to facilitate session hijacking/account takeover. CVSS v3.1 vector provided: AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Mitigation

If you can’t patch tonight, do this now.

If immediate upgrade is not possible: restrict which users/roles can create or modify Time Entry notes; review and remove suspicious Time Entry note content where feasible; apply compensating controls such as stricter Content Security Policy (if supported by the deployment) and enhanced monitoring/detection for anomalous client-side activity when users view Time Entry Audit Trail entries.

Remediation

Patch, then assume compromise.

Upgrade/patch ConnectWise PSA to 2026.1 or later (ConnectWise PSA 2026.1 updates input handling/output encoding for the affected Time Entry note rendering). Ensure desktop clients are updated where applicable; cloud instances are stated to be automatically updated.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

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VendorProductType
ConnectwiseProfessional Service Automationapplication
ConnectwisePsaapplication

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Threat actor evidence

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Associated malware

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Detection signatures

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Vendor-by-vendor mapping

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Social activity9

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