Cyber Resilience

CVE-2017-20034

LowPublic PoC

Published: 10 June 2022

Published
10 June 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 3.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
EPSS Score 0.0021 42.9th percentile
Risk Priority 7 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2017-20034 is a low-severity Basic XSS (CWE-80) vulnerability in Phplist Phplist. Its CVSS base score is 3.5 (Low).

Operationally, ranked at the 42.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A vulnerability classified as problematic was found in PHPList 3.2.6. This vulnerability affects unknown code of the file /lists/admin/ of the component List Name. The manipulation leads to cross site scripting (Persistent). The attack can be initiated remotely. Upgrading to…

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version 3.3.1 is able to address this issue. It is recommended to upgrade the affected component.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

phplist
phplist
3.2.6

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References