How severe is CVE-2021-32737?

CVE-2021-32737 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-32737 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32737?

CVE-2021-32737 affects Sulu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32737?

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-2021-32737 published?

CVE-2021-32737 was published on 2021-07-02 and last updated on 2026-06-17.

CVE-2021-32737

CVE-2021-32737 is a high-severity vulnerability in Sulu with a CVSS 3.x base score of 8.4. 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: High (CVSS 3.x base score 8.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sulu
Published: 2021-07-02
Last modified: 2026-06-17

Description

Sulu is an open-source PHP content management system based on the Symfony framework. In versions of Sulu prior to 1.6.41, it is possible for a logged in admin user to add a script injection (cross-site-scripting) in the collection title. The problem is patched in version 1.6.41. As a workaround, one may manually patch the affected JavaScript files in lieu of updating.

Frequently asked questions

What is CVE-2021-32737?: Sulu is an open-source PHP content management system based on the Symfony framework. In versions of Sulu prior to 1.6.41, it is possible for a logged in admin user to add a script injection (cross-site-scripting) in the collection title. The problem is patched in version 1.6.41. As a workaround, one may manually patch the affected JavaScript files in lieu of updating.
How severe is CVE-2021-32737?: CVE-2021-32737 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-32737 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32737?: CVE-2021-32737 affects Sulu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32737?: 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-2021-32737 published?: CVE-2021-32737 was published on 2021-07-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sulu:sulu:*:*:*:*:*:*:*:*

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