CVE-2026-112042 diem-project diem dmWidget dmBaseLinkTag.php text cross site scripting
Remote attackers can execute arbitrary scripts via the text argument in dmBaseLinkTag, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112042?
CVE-2026-112042 is a medium-severity cross-site scripting vulnerability in diem-project diem, published on 19 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A security flaw has been discovered in diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. This issue affects the function dmBaseLinkTag::text of the file dmCorePlugin/lib/view/html/link/dmBaseLinkTag.php of the component dmWidget. Performing a manipulation of the argument text results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-112042?
How do I fix CVE-2026-112042?
No fix has been published for CVE-2026-112042 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-112042 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112042 exists.
Sources
Also known as GHSA-xxg5-2m9v-674j.