CVE-2026-102333CWE-79cross-site-scripting

CVE-2026-102333

Medium · published September 29, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
10.6
In the wild
Unconfirmed
What it is

httpdbg before 2.2.1 fails to validate URL schemes in recorded HTTP request URLs rendered as clickable links in the web interface. Attackers controlling traffic recorded by httpdbg can supply javascript: scheme URLs that execute malicious scripts in the application origin when clicked, allowing access to captured request and response data including headers and tokens.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00210 · 10.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-29T03:17Z
References (9)
https://github.com/cle-b/httpdbg · [email protected]https://github.com/cle-b/httpdbg/blob/v2.2.0/httpdbg/hooks/recordhttp2.py#L88-L97 · [email protected]https://github.com/cle-b/httpdbg/blob/v2.2.0/httpdbg/webapp/static/index.htm#L302 · [email protected]https://github.com/cle-b/httpdbg/commit/121845b41c19ddaf30b51be0797bc2ff4847d8b3 · [email protected]https://github.com/cle-b/httpdbg/issues/220 · [email protected]https://github.com/cle-b/httpdbg/pull/222 · [email protected]https://github.com/cle-b/httpdbg/releases/tag/v2.2.1 · [email protected]https://www.vulncheck.com/advisories/httpdbg-before-2.2.1-stored-cross-site-scripting-via-javascript-url · [email protected]https://github.com/cle-b/httpdbg/issues/220 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 30 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 28 SEP 22:21Z
    httpdbg before 2.2.1 Stored Cross-Site Scripting via javascript URL
    cvelistv5