Sensitive file read via default XXE
Published Aug 19, 2026 · Updated Aug 19, 2026
XML external entity injection in the OCI XML Parser in Cisco BroadWorks allows remote attackers to read files via OCI-P XML requests. The parser permits external entity resolution by default, so attacker-controlled XML entities in Open Client Interface Provisioning messages are dereferenced and local file contents can be exposed through parsing. No authentication or special configuration is required on the reachable OCI-P service, and disclosure is limited to files readable by the Cisco BroadWorks user.
Summary
What happened
XML external entity injection in the OCI XML Parser in Cisco BroadWorks allows remote attackers to read files via OCI-P XML requests. The parser permits external entity resolution by default, so attacker-controlled XML entities in Open Client Interface Provisioning messages are dereferenced and local file contents can be exposed through parsing. No authentication or special configuration is required on the reachable OCI-P service, and disclosure is limited to files readable by the Cisco BroadWorks user.
The record
- CVE
- CVE-2026-20320
- Published
- Aug 19, 2026
- Updated
- Aug 19, 2026
- Vendor
- ClamAV
- Product
- Cisco BroadWorks
- Classifications
- CWE-611, CAPEC-221, T1190, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 19, 2026CVE publishedPublication date reported by the CVE source.
- Aug 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
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- Affected versionversion=N/A
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What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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