CVE-2026-81731Network attack vectorHinoki check available

Victim-session script execution via unescaped workspace descriptions

Published Aug 27, 2026 · Updated Aug 27, 2026

Stored XSS in Frappe Framework 15.11.0 through 16.32.0 allows remote authenticated users to run script in other desk users' sessions. Workspace Link marks its description to bypass XSS filtering, and LinksWidget inserts the unchanged value into an HTML-enabled popover without escaping. Workspace Manager access, a public workspace, and a victim hovering over its description are required; execution can expose session tokens and issue authenticated requests as the victim.

CVSS severity5.4
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Frappe Framework 15.11.0 through 16.32.0 allows remote authenticated users to run script in other desk users' sessions. Workspace Link marks its description to bypass XSS filtering, and LinksWidget inserts the unchanged value into an HTML-enabled popover without escaping. Workspace Manager access, a public workspace, and a victim hovering over its description are required; execution can expose session tokens and issue authenticated requests as the victim.

The record

CVE
CVE-2026-81731
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Frappe Technologies Pvt. Ltd.
Product
Frappe Framework
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15.11.0 <=16.32.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Frappe Technologies Pvt. Ltd. · Frappe Frameworkversion=15.11.0 <=16.32.0

Published CVSS scores

5.4VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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