CVE intelligence and bounded remediation
CVE-2020-35123 — Zimbra Collaboration security vulnerability
In Zimbra Collaboration Suite Network Edition versions < 9.0.0 P10 and 8.8.15 P17, there exists an XXE vulnerability in the saml consumer store extension, which is vulnerable to XXE attacks. This has been fixed in Zimbra Collaboration Suite Network edition 9.0.0 Patch 10 and 8.8.15 Patch 17.
- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Published
- 2020-12-17
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-611
Affected products
- zimbra / collaboration
- zimbra / collaboration / 8.8.15
Showing 2 representative product identities from 28 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
XML external entity and unsafe XML processing
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Inventory XML parsers used by APIs, file imports, office or image formats, identity protocols, feeds, and background jobs.
- Determine whether document type declarations, external entities, XInclude, schemas, or network resolvers are enabled.
- Map parser filesystem and network access and the sensitivity of documents it processes.
Remediate safely
- Configure each parser to reject document type declarations and disable external entity, XInclude, and network resolution features.
- Prefer a data format or hardened parser that does not support external resolution, and apply input size and depth limits.
- Update affected XML libraries and centralize secure parser construction so callers cannot silently override it.
Authoritative sources
Complete CVE record and remediation plan
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