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CVE-2022-27926 is a reflected cross-site scripting vulnerability in Zimbra Collaboration 9.0 affecting the /public/launchNewWindow.jsp component. The flaw allows unauthenticated attackers to supply crafted request parameters that are reflected into the application response without proper neutralization, enabling execution of arbitrary JavaScript or HTML in a victim’s browser within the security context of the targeted Zimbra webmail portal. In observed exploitation, attackers used malicious links to trigger script execution against publicly exposed Zimbra webmail instances and then loaded tailored JavaScript payloads to interact with the victim’s authenticated webmail session.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in the Zimbra webmail portal reportedly exploited by TAG-70 to gain access to emails of military, government, and diplomatic organizations.
A cross-site scripting (XSS) vulnerability in the Zimbra webmail portal that was used to steal diplomats’ webmail credentials.
A reflected cross-site scripting (XSS) vulnerability in Zimbra Collaboration (ZCS) 9.0.0 (/public/launchNewWindow.jsp) that allows unauthenticated attackers to execute arbitrary script/HTML via request parameters; used here to run bespoke JavaScript that performs CSRF-style credential and token theft from webmail portals.
A Zimbra vulnerability used in the compromise chain described alongside Winter Vivern activity targeting government staff in Europe and Asia.
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.