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CVE-2026-88903: Topcontent 0 through 1.2.1
CVE-2026-88903. CVSS 3.1 base score 8.8 (HIGH, Source advisory).
Affected technology
Topcontent · 0 through 1.2.1
Vendor not specified by the source
Description’s affected range: through 1.2.1 does not properly authorise one of its request handlers and disables HTML sanitisation before storing the submitted content
Component: Not specified by the source
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · User interaction required
What an attacker can do
Unauthenticated attackers can publish arbitrary posts containing malicious JavaScript on any site where its API key has never been configured. Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.
- CWE
- CWE-79
- CCR priority
- 35.2 /100 (P4)
- CVSS 3.1
- 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · Source advisory
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-11 14:36:08.397997+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-11 14:33:42.764061+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-88903.html