How severe is CVE-2017-20034?

CVE-2017-20034 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2017-20034 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-20034?

CVE-2017-20034 affects Phplist. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-20034?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-20034 published?

CVE-2017-20034 was published on 2022-06-10 and last updated on 2026-06-17.

CVE-2017-20034

CVE-2017-20034 is a low-severity vulnerability in Phplist with a CVSS 3.x base score of 3.5. 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-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 3.5
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Phplist
Published: 2022-06-10
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2017-20034?: 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 version 3.3.1 is able to address this issue. It is recommended to upgrade the affected component.
How severe is CVE-2017-20034?: CVE-2017-20034 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2017-20034 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-20034?: CVE-2017-20034 affects Phplist. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-20034?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-20034 published?: CVE-2017-20034 was published on 2022-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phplist:phplist:3.2.6:*:*:*:*:*:*:*

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