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CVE-2005-4838 is a reflected cross-site scripting vulnerability affecting the example web applications included with Jakarta Tomcat 5.5.6 and earlier. Multiple example JSP pages in the JSP 2 examples application render user-controlled request data without appropriate output escaping, allowing remote attackers to inject arbitrary HTML or JavaScript into a response.
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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.
If you can’t patch tonight, do this now.
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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Cross-site scripting affecting JSP examples and the Tomcat Manager.
Cross-site scripting affecting Tomcat example JSPs and Manager pages.
An unspecified flaw in the Apache Tomcat package shipped with Red Hat Network Satellite Server 5.1.
A set of cross-site scripting vulnerabilities in the example JSP applications bundled with Jakarta Tomcat 5.5.6 and earlier. Remote attackers can inject arbitrary HTML or script through affected example application pages; separately reported Tomcat Manager XSS issues required administrator access and did not cross privilege boundaries.
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.