What is CVE-2026-102258?
Post-authentication Stored Cross-Site Scripting (XSS) vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to store and potentially execute arbitrary JavaScript code in the Appliance Management Console (AMC).
The record classifies CVE-2026-102258 under weakness class CWE-79. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 3 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 6.1 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EPSS (FIRST)
- 0.3% probability of exploitation in the next 30 days, higher than 31.3% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-07
Is CVE-2026-102258 being exploited?
It currently carries a trending score of 47 in the Threadlinqs vulnerability feed.
Affected products and versions
- SonicWall: SMA1000
How to fix CVE-2026-102258
No vendor patch reference has been recorded for CVE-2026-102258 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-102258
2 tracked threats in the Threadlinqs corpus reference CVE-2026-102258, either in the campaign’s CVE list or as an indicator on the campaign record.
- SonicWall SMA1000 Pre-Auth SSRF (CVE-2026-102255, CVSS 10.0) and Critical Splunk Enterprise Vulnerabilities (CVE-2026-76268, CVE-2026-76281, CVE-2026-76284) Patched — CRITICAL · 2026-10-08
- SonicWall SMA1000 Four Flaws Patched Incl. Critical Pre-Auth SSRF CVE-2026-102255 (CVSS 10.0) — CRITICAL · 2026-10-07
Sources
Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on .