CVE-2026-126771
mediumOpsTree REMS through 1.0.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject scripts by uploading attachments…
OpsTree REMS through 1.0.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject scripts by uploading attachments with spoofed text/html Content-Type. Attackers can upload HTML files named like test.html.pdf that render in the REMS origin via Preview, executing JavaScript in victims' browsers.
CVSS
5.4
5.4 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-11-11 19:17
Modified: 2026-11-11 19:17
NVD status: Received
Last synced 50 minutes ago
Verified against the source API 2026-11-11 19:42 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://gist.github.com/neelkotnis/ddf75e2cb7192180e6c9618d27d1e99b disclosure@vulncheck.com
- https://opstree.com/rems-ai-powered-observability/ disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/opstree-rems-through-1.0.0-stored-xss-via-attachment-... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 19:42 UTC · record ↗