CVE-2018-6882

criticalknown exploitedpublic exploitcovered by 1 sourcefirst seen 2022-04-19

Actively exploited. CVE-2018-6882 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-19) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.

Public exploit code is available. Proof-of-concept or working exploit code for CVE-2018-6882 is indexed in Nuclei. Expect opportunistic scanning and exploitation attempts — prioritize remediation.

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that might allow remote attackers to inject arbitrary web script or HTML.

CSIRTS triage

What: Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that might allow remote attackers to inject arbitrary web script or HTML.
Who is affected: Users of Synacor Zimbra Collaboration Suite.
Urgency: Immediate action is necessary as the vulnerability is actively exploited and rated critical.
Action: Apply the latest updates for Zimbra Collaboration Suite.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all EPSS-scored CVEs.

Exploit availability

Public exploit or proof-of-concept code for CVE-2018-6882 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.

NucleiA nuclei-templates detection/PoC template exists for this CVE.look it up ↗

Advisory coverage (1)

criticalexploitedCVE-2018-6882: Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerabilitycisa-kev · 2022-04-19

External references

NVD record for CVE-2018-6882

CVE.org record

CISA KEV catalog

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