Stored DOM-based XSS in CI4MS Menu Management
CVE-2026-34565 is a stored DOM-based cross-site scripting vulnerability in CI4MS, a CodeIgniter 4-based CMS skeleton, affecting versions prior to 0.31.0.0. The flaw exists in the Menu Management functionality when adding Posts to navigation menus. User-controlled post-related data selected via the Posts section is stored server-side and later rendered without proper sanitization and output encoding. Because the stored values are injected back into administrative dashboards and public-facing navigation menus in an unsafe manner, attacker-supplied script can execute in the victim's browser.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
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.