Vulnerability in Leoeditor Leo

CVE-2020-23478

Leo Editor v6.2.1 was discovered to contain a regular expression denial of service (ReDoS) vulnerability in the component plugins/importers/dart.py.

EPSS: 0.012 (65.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Leoeditor Leo — versions 6.2.1
N/a — versions n/a

Weakness classification (CWE)

CWE-697 — Incorrect Comparison

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-23478

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-23478?: CVE-2020-23478 is a high-severity vulnerability in Leoeditor Leo, classified under Incorrect Comparison. CVSS score: 7.5/10. Published 2021-09-22.
How severe is CVE-2020-23478?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-23478 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.