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Evidence dossier
CVE-2022-24682
CVE-2022-24682
61.9–81.4Priority evidence range
gen-56ccdaf9Normalized restatement
An issue was discovered in the Calendar feature in Zimbra Collaboration Suite 8.8.x before 8.8.15 patch 30 (update 1), as exploited in the wild starting in December 2021. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.
- State
- PUBLISHED
- Published
- Feb 9, 2022
- Updated
- Oct 21, 2025
- Evidence coverage
- 72%
2026-07-18 · v2026.06.15 · percentile 98.1%
Distinct CVSS assessments remain side by side; none are averaged.
Source comparison
Who said what
mitreoriginal assertion
container
An issue was discovered in the Calendar feature in Zimbra Collaboration Suite 8.8.x before 8.8.15 patch 30 (update 1), as exploited in the wild starting in December 2021. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.
Jul 19, 2026Original evidence ↗
CISA KEVoriginal assertion
observed_exploitation
Synacor Zimbra Collaborate Suite (ZCS) Cross-Site Scripting Vulnerability
Jul 19, 2026Original evidence ↗
FIRST EPSSoriginal assertion
model_probability
Probability 0.310600000000; percentile 0.980640000000
Jul 19, 2026Original evidence ↗
Applicability
Cited product scope
n/an/a
[{"status": "affected", "version": "n/a"}]unknownUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*; start including 8.8.0; end excluding 8.8.15supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:-:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p1:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p10:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p11:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p12:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p13:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p14:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p15:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p16:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p17:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p18:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p19:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p2:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p20:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p21:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p22:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p23:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p24:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p25:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p26:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p27:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p28:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p29:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p3:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p4:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p5:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p6:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p7:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p8:*:*:*:*:*:*supportedUnknown vendorUnknown product
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p9:*:*:*:*:*:*supportedAssessments
CVSS by origin
nvd@nist.govCVSS 3.1 · role Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nnvd@nist.govCVSS 2.0 · role Primary
AV:N/AC:M/Au:N/C:N/I:P/A:N134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCISA-ADPCVSS 3.1 · role unknown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NLimitations and unknowns
- KEV membership is authoritative for the catalog, not proof of exposure in any environment.
- EPSS is a dated model probability and not an individual-environment prediction.
- Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
- NVD-carried upstream facts remain derivative and are not independent corroboration.
- Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
- NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
- Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.