Frappe up to 16.31.0 Like frappe/desk/like.py toggle_like/mark_as_seen _liked_by privileges management

Summaryinfo

A vulnerability classified as critical has been found in Frappe up to 16.31.0. This affects the function toggle_like/mark_as_seen of the file frappe/desk/like.py of the component Like. Performing a manipulation of the argument _liked_by results in privileges management. This vulnerability is cataloged as CVE-2026-53569. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Frappe up to 16.31.0. It has been classified as critical. This affects the function toggle_like/mark_as_seen of the file frappe/desk/like.py of the component Like. The manipulation of the argument _liked_by with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Frappe is a full-stack web application framework. In version 16.31.0 and earlier, the whitelisted toggle_like and mark_as_seen endpoints in frappe/desk/like.py and frappe/desk/doctype/note/note.py do not enforce read permission before modifying _liked_by metadata or a Note seen state. An authenticated user can interact with documents or notes that the user cannot read, disclosing resource existence and modifying resource-associated metadata. No released fixed version is available as of this review.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-53569 since 06/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/20/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Frappe

Version

• 16.0
• 16.1
• 16.2
• 16.3
• 16.4
• 16.5
• 16.6
• 16.7
• 16.8
• 16.9
• 16.10
• 16.11
• 16.12
• 16.13
• 16.14
• 16.15
• 16.16
• 16.17
• 16.18
• 16.19
• 16.20
• 16.21
• 16.22
• 16.23
• 16.24
• 16.25
• 16.26
• 16.27
• 16.28
• 16.29
• 16.30
• 16.31.0

Website

• Product: https://github.com/frappe/frappe/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion