What is CVE-2018-1000523?

CVE-2018-1000523 is a high-severity vulnerability in Topydo, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2018-06-26.

How severe is CVE-2018-1000523?

High severity. CVSS v3 base score is 8.1 out of 10.

Improper input validation in Topydo

CVE-2018-1000523

topydo contains a CWE-20: Improper Input Validation vulnerability in ListFormatParser::parse, file topydo/lib/ListFormat.py line 292 as of d4f843dac71308b2f29a7c2cdc76f055c3841523 that can result in Injection of arbitrary bytes to the terminal, including terminal escape code sequences. This attack appear to be exploitable via The victim must open a todo.txt with at least one specially crafted line..

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-06-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.2th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Topydo

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/bram85/topydo/issues/240 (Third Party Advisory)
github.com/bram85/topydo/blob/master/topydo/lib/ListFormat.py (Third Party Advisory)

Frequently asked questions

What is CVE-2018-1000523?: CVE-2018-1000523 is a high-severity vulnerability in Topydo, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2018-06-26.
How severe is CVE-2018-1000523?: High severity. CVSS v3 base score is 8.1 out of 10.