Zimbra Collaboration Suite RestFilter Request Attribute Override via Unauthenticated URL Parameters
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Zimbra | Zimbra Collaboration Suite | unaffected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Zimbra | Zimbra Collaboration Suite |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.289% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Synacor
Synacor zimbra Collaboration Suite |
|
| CPEs | cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Synacor
Synacor zimbra Collaboration Suite |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zimbra
Zimbra zimbra Collaboration Suite |
|
| Vendors & Products |
Zimbra
Zimbra zimbra Collaboration Suite |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A request attribute override vulnerability in Zimbra Collaboration Suite (ZCS) allows unauthenticated requests to /h/* to populate servlet attributes intended for trusted internal dispatch. RestFilter copies URL parameters specifying an authentication token, target account, target item and dispatch state into the request attributes consumed by the Classic Web Client. Combined with CVE-2026-10632 on ZCS 10.1.16, this allows an attacker to supply their own valid token and document identifiers and execute JavaScript in another user's signed-in browser session. ZCS 10.1.17 blocks that XSS chain by changing the document renderer, but retains the request attribute override. | |
| Title | Zimbra Collaboration Suite RestFilter Request Attribute Override via Unauthenticated URL Parameters | |
| Weaknesses | CWE-642 | |
| References |
| |
| Metrics |
cvssV3_1
|