How severe is CVE-2020-37222?

CVE-2020-37222 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-37222 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-37222?

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.

Does CVE-2020-37222 have an EU (EUVD) identifier?

Yes. CVE-2020-37222 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31223.

When was CVE-2020-37222 published?

CVE-2020-37222 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2020-37222

CVE-2020-37222 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. 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 7.2)
CVSS v4: 5.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-31223
Weakness: CWE-79
Published: 2026-05-13
Last modified: 2026-06-17

Description

Kuicms Php EE 2.0 contains a persistent cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted content through the bbs reply endpoint. Attackers can send POST requests to /web/?c=bbs&a=reply with HTML and JavaScript payloads in the content parameter to execute arbitrary scripts in users' browsers.

Frequently asked questions

What is CVE-2020-37222?: Kuicms Php EE 2.0 contains a persistent cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted content through the bbs reply endpoint. Attackers can send POST requests to /web/?c=bbs&a=reply with HTML and JavaScript payloads in the content parameter to execute arbitrary scripts in users' browsers.
How severe is CVE-2020-37222?: CVE-2020-37222 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-37222 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-37222?: 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.
Does CVE-2020-37222 have an EU (EUVD) identifier?: Yes. CVE-2020-37222 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31223.
When was CVE-2020-37222 published?: CVE-2020-37222 was published on 2026-05-13 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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