CVE-2026-82805CWE-79CWE-94cross-site-scriptingcode-injection

CVE-2026-82805

Medium · published August 31, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
40.9
In the wild
Unconfirmed
What it is

A vulnerability was found in Typora up to 1.13.8/1.14.6. This vulnerability affects unknown code of the component Mermaid Rendering Engine. The manipulation of the argument classDef/style results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 1.14.8 is able to resolve this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00486 · 40.9th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-08-31T20:19Z
References (7)
https://github.com/zzk6th/cve/issues/5 · [email protected]https://typora.io/#download · [email protected]https://typora.io/releases/all · [email protected]https://vuldb.com/cve/CVE-2026-82805 · [email protected]https://vuldb.com/submit/863528 · [email protected]https://vuldb.com/vuln/397225 · [email protected]https://vuldb.com/vuln/397225/cti · [email protected]
EPSS history
Timeline
  • 02 SEP 03:40Z
    EPSS moved — → 0%
    epss
  • 31 AUG 15:45Z
    Typora Mermaid Rendering cross site scripting
    cvelistv5