Apache Tomcat up to 8.5.81/9.0.64/10.0.22/10.1.0-M16 Form Authentication Example cross site scripting

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.


A vulnerability was found in Apache Tomcat up to 8.5.81/9.0.64/10.0.22/10.1.0-M16. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Form Authentication Example. The manipulation leads to cross site scripting. Using CWE to declare the problem leads to CWE-79. The weakness was presented 06/23/2022. The advisory is shared for download at lists.apache.org. This vulnerability is handled as CVE-2022-34305. The attack may be launched remotely. There are no technical details available. There is no exploit available. The current price for an exploit might be approx. USD $0-$5k at the moment. The MITRE ATT&CK project declares the attack technique as T1059.007. It is declared as not defined. As 0-day the estimated underground price was around $0-$5k. Upgrading to version 8.5.82, 9.0.65, 10.0.23 and 10.1.0-M17 is able to address this issue. The updated version is ready for download at tomcat.apache.org. It is recommended to upgrade the affected component. A possible mitigation has been published before and not just after the disclosure of the vulnerability. [Details]



IOC - Indicator of Compromise (2)

These indicators of compromise highlight associated network ranges which are known to be part of research and attack activities.

IDIP rangeActorTypeConfidence

TTP - Tactics, Techniques, Procedures (1)

Tactics, techniques, and procedures summarize the suspected MITRE ATT&CK techniques used. This data is unique as it uses our predictive model for actor profiling.

IDTechniqueVulnerabilitiesAccess VectorTypeConfidence
1T1059.007CWE-79Cross Site ScriptingpredictiveHigh

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