{"cveID":"CVE-2024-42009","vendorProject":"Roundcube","product":"Webmail","vulnerabilityName":"RoundCube Webmail Cross-Site Scripting Vulnerability","dateAdded":"2025-06-09","shortDescription":"RoundCube Webmail contains a cross-site scripting vulnerability. This vulnerability could allow a remote attacker to steal and send emails of a victim via a crafted e-mail message that abuses a Desanitization issue in message_body() in program/actions/mail/show.php.","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","dueDate":"2025-06-30","knownRansomwareCampaignUse":"Unknown","notes":"https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8 ; https://nvd.nist.gov/vuln/detail/CVE-2024-42009","cwes":["CWE-79"],"year":2024,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2024-42009","technique":"T1566.002","technique_name_at_mapping":"Spearphishing Link","mapping_type":"exploitation_technique","capability_group":"xss","comments":"An attacker can exploit a deserialization/desanitization issue by injecting malicious JavaScript into a message. Parsing the HTML inside the message can allow the exfiltration of email data, as well as commandeer the victim's browser.","references":["https://github.com/DaniTheHack3r/CVE-2024-42009-PoC"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2024-42009","technique":"T1056","technique_name_at_mapping":"Input Capture","mapping_type":"primary_impact","capability_group":"xss","comments":"An attacker can exploit a deserialization/desanitization issue by injecting malicious JavaScript into a message. Parsing the HTML inside the message can allow the exfiltration of email data, as well as commandeer the victim's browser.","references":["https://github.com/DaniTheHack3r/CVE-2024-42009-PoC"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2024-42009","technique":"T1114","technique_name_at_mapping":"Email Collection","mapping_type":"primary_impact","capability_group":"xss","comments":"An attacker can exploit a deserialization/desanitization issue by injecting malicious JavaScript into a message. Parsing the HTML inside the message can allow the exfiltration of email data, as well as commandeer the victim's browser.","references":["https://github.com/DaniTheHack3r/CVE-2024-42009-PoC"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1056","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Input Capture","name_at_mapping":"Input Capture","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":2,"has_detection_strategy":true},{"id":"T1114","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Email Collection","name_at_mapping":"Email Collection","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":4,"has_detection_strategy":true},{"id":"T1566.002","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Spearphishing Link","name_at_mapping":"Spearphishing Link","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":4,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-24 19:45 UTC","_attack_version":"19.2"}