How severe is CVE-2018-1000523?

CVE-2018-1000523 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2018-1000523 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000523?

CVE-2018-1000523 affects Topydo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000523?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-1000523 published?

CVE-2018-1000523 was published on 2018-06-26 and last updated on 2026-06-17.

CVE-2018-1000523

CVE-2018-1000523 is a high-severity vulnerability in Topydo with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Topydo
Published: 2018-06-26
Last modified: 2026-06-17

Description

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..

Frequently asked questions

What is 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..
How severe is CVE-2018-1000523?: CVE-2018-1000523 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2018-1000523 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000523?: CVE-2018-1000523 affects Topydo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000523?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-1000523 published?: CVE-2018-1000523 was published on 2018-06-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:topydo:topydo:-:*:*:*:*:*:*:*

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