CVE-2026-56840 PraisonAI - Stored XSS & Broken Access Control

PraisonAI 4.5.2 to <4.6.59 contains a stored XSS caused by rendering attacker-controlled tool arguments in the approval dashboard HTML, letting attackers execute scripts that auto-approve requests, exploit requires human to open approval URL.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
23 October 2026
Updated
25 October 2026
Weakness
CWE-79

Vendor fix

Update to version 4.6.59 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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