Ankitects Anki up to 25.02 inclusion of web functionality from an untrusted source

Summaryinfo

A vulnerability has been found in Ankitects Anki up to 25.02 and classified as critical. Affected is an unknown function. The manipulation leads to inclusion of web functionality from an untrusted source. This vulnerability is referenced as CVE-2025-43703. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Ankitects Anki up to 25.02. It has been rated as critical. This issue affects an unknown part. The manipulation with an unknown input leads to a inclusion of web functionality from an untrusted source vulnerability. Using CWE to declare the problem leads to CWE-830. The product includes web functionality (such as a web widget) from another domain, which causes it to operate within the domain of the product, potentially granting total access and control of the product to the untrusted source. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Ankitects Anki through 25.02. A crafted shared deck can result in attacker-controlled access to the internal API (even though the attacker has no knowledge of an API key) through approaches such as scripts or the SRC attribute of an IMG element. NOTE: this issue exists because of an incomplete fix for CVE-2024-32484.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-43703 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/09/2025).

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-11537). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Ankitects

Name

• Anki

Version

• 25.02

Website

• Product: https://github.com/ankitects/anki/

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