Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N N P N N N 5.3 .0021 10.3 —
AFFECTED Product Versions Fixed GestSup unspecified —
TIMELINE Sep 28 Reserved by VulnCheck Sep 29 EXPLOIT PUBLISHED — CVE-2026-102374 (GestSup). Public exploit reference added. Sep 29 Published (CNA: VulnCheck)
GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject JavaScript that executes in technician sessions when viewing tickets.
| Date | Event | Detail |
|---|---|---|
| September 28, 2026 | Reserved | Reserved by VulnCheck |
| September 29, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-102374 (GestSup). Public exploit reference added. |
| September 29, 2026 | Published | Published (CNA: VulnCheck) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| GestSup | GestSup | — | — | — |
Authoritative record: CVE-2026-102374 at cve.org
Vendors: gestsup
Weaknesses: CWE-79
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-102374 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
