rachelos we-mp-rss up to 1.5.3 Template Processing template os command injection

Summaryinfo

A vulnerability was found in rachelos we-mp-rss up to 1.5.3 and classified as critical. Impacted is an unknown function of the component Template Processing. The manipulation of the argument template results in os command injection. This vulnerability is cataloged as CVE-2026-111687. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in rachelos we-mp-rss up to 1.5.3. It has been classified as critical. Affected is an unknown code of the component Template Processing. The manipulation of the argument template with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

WeRSS (we-mp-rss) through 1.5.3 contains a remote code execution vulnerability that allows unauthenticated attackers to run code via the template parameter of the public GET /rss/{feed_id} endpoint. Attackers can supply a non-built-in ext value and a {{=expression}} template whose object-subclass traversal bypasses the eval denylist to run OS commands as the service account.

The advisory is shared for download at hackmd.io. This vulnerability is traded as CVE-2026-111687 since 10/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/16/2026). The MITRE ATT&CK project declares the attack technique as T1202.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• rachelos

Name

• we-mp-rss

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3

CPE 2.3info

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CPE 2.2info

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