How severe is CVE-2020-23263?

CVE-2020-23263 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-23263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-23263?

CVE-2020-23263 affects Fork-cms Fork Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-23263?

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

When was CVE-2020-23263 published?

CVE-2020-23263 was published on 2021-05-06 and last updated on 2026-06-17.

CVE-2020-23263

CVE-2020-23263 is a medium-severity vulnerability in Fork-cms Fork Cms with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Fork-cms Fork Cms
Published: 2021-05-06
Last modified: 2026-06-17

Description

Persistent Cross-site scripting vulnerability on Fork CMS version 5.8.2 allows remote attackers to inject arbitrary Javascript code via the "navigation_title" parameter and the "title" parameter in /private/en/pages/add.

Frequently asked questions

What is CVE-2020-23263?: Persistent Cross-site scripting vulnerability on Fork CMS version 5.8.2 allows remote attackers to inject arbitrary Javascript code via the "navigation_title" parameter and the "title" parameter in /private/en/pages/add.
How severe is CVE-2020-23263?: CVE-2020-23263 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-23263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-23263?: CVE-2020-23263 affects Fork-cms Fork Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-23263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-23263 published?: CVE-2020-23263 was published on 2021-05-06 and last updated on 2026-06-17.

References

https://github.com/forkcms/forkcms/pull/3093

Affected products (1)

cpe:2.3:a:fork-cms:fork_cms:5.8.2:*:*:*:*:*:*:*

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