SSRF in Zimbra Collaboration Suite WebEx Zimlet (zimlet JSP enabled)
Zimbra Collaboration Suite (ZCS) contains a server-side request forgery (SSRF) vulnerability in versions prior to 8.8.15 Patch 7 that is reachable when the WebEx zimlet is installed and zimlet JSP functionality is enabled. Under these conditions, an attacker can coerce the ZCS server into making unauthorized outbound HTTP requests to attacker-chosen destinations, including internal network services and cloud/instance metadata endpoints, potentially exposing sensitive information depending on what internal resources are reachable.
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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
22 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity vulnerability in Microsoft Windows Video ActiveX Control described as enabling unauthorized data access via SSRF-style requests; observed being exploited at scale and associated with malware download activity.
A vulnerability referenced as being exploited in observed attacks (mentioned in the context of exploitation activity preceding an SSRF surge).
Server-side request forgery (SSRF) vulnerability in Synacor Zimbra Collaboration Suite (ZCS) enabling crafted HTTP requests to access sensitive information; listed by CISA KEV as actively exploited.
Server-Side Request Forgery (SSRF) in Zimbra Collaboration Suite (notably when WebEx Zimlet is installed and JSP enabled) enabling unauthorized outbound requests and potential access to internal resources.
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.