Medium severity6.1NVD Advisory· Published Aug 13, 2025· Updated Jun 17, 2026

CVE-2025-51691

Description

Cross-Site Scripting (XSS) vulnerability found in MarkTwo commit e3a1d3f90cce4ea9c26efcbbf3a1cbfb9dcdb298 (May 2025) allows a remote attacker to execute arbitrary code via a crafted script input to the editor interface. The application does not properly sanitize user-supplied Markdown before rendering it. Successful exploitation could lead to session hijacking, credential theft, or arbitrary client-side code execution in the context of the victim's browser.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Anthonygarvan/Marktworeferences
MarkTwo/MarkTwollm-create
Range: e3a1d3f90cce4ea9c26efcbbf3a1cbfb9dcdb298

Patches

Vulnerability mechanics

References

github.com/0x72303074/CVE-Disclosures/tree/main/MarkTwo%20Markdown%20Editor/CVE-2025-51691nvd
marktwo.app/try-it-nownvd

News mentions

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cvss	0.397
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ransomware	0.000