CVE-2026-12228 is a stored cross-site scripting vulnerability in parisneo/lollms affecting the prompt-sharing workflow exposed through the POST /api/prompts/share endpoint. The flaw arises because attacker-controlled prompt content is stored in the direct-message content field without adequate server-side sanitization. When the recipient later opens the direct-message thread, the frontend renders the stored content through the direct-message rendering component using unsafe HTML insertion via v-html. The client-side sanitizer is regex-based and does not comprehensively neutralize malicious HTML, allowing crafted content to survive storage and execute in the victim’s browser when viewed. This is a stored XSS condition with a cross-user trigger path from one authenticated user to another.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.