How severe is CVE-2020-7937?

CVE-2020-7937 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-7937 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7937?

CVE-2020-7937 affects Plone. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7937?

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

When was CVE-2020-7937 published?

CVE-2020-7937 was published on 2020-01-23 and last updated on 2026-06-17.

CVE-2020-7937

CVE-2020-7937 is a medium-severity vulnerability in Plone with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Plone
Published: 2020-01-23
Last modified: 2026-06-17

Description

An XSS issue in the title field in Plone 5.0 through 5.2.1 allows users with a certain privilege level to insert JavaScript that will be executed when other users access the site.

Frequently asked questions

What is CVE-2020-7937?: An XSS issue in the title field in Plone 5.0 through 5.2.1 allows users with a certain privilege level to insert JavaScript that will be executed when other users access the site.
How severe is CVE-2020-7937?: CVE-2020-7937 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-7937 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7937?: CVE-2020-7937 affects Plone. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7937?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-7937 published?: CVE-2020-7937 was published on 2020-01-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:*

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