How severe is CVE-2020-21130?

CVE-2020-21130 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-2020-21130 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-2020-21130?

CVE-2020-21130 affects Hisiphp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-21130?

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

When was CVE-2020-21130 published?

CVE-2020-21130 was published on 2021-06-21 and last updated on 2026-06-17.

CVE-2020-21130

CVE-2020-21130 is a medium-severity vulnerability in Hisiphp 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% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hisiphp
Published: 2021-06-21
Last modified: 2026-06-17

Description

Cross Site Scripting (XSS) vulnerability in HisiPHP 2.0.8 via the group name in addgroup.html.

Frequently asked questions

What is CVE-2020-21130?: Cross Site Scripting (XSS) vulnerability in HisiPHP 2.0.8 via the group name in addgroup.html.
How severe is CVE-2020-21130?: CVE-2020-21130 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-2020-21130 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-2020-21130?: CVE-2020-21130 affects Hisiphp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-21130?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-21130 published?: CVE-2020-21130 was published on 2021-06-21 and last updated on 2026-06-17.

References

https://github.com/hisiphp/hisiphp/issues/7

Affected products (1)

cpe:2.3:a:hisiphp:hisiphp:2.0.8:*:*:*:*:*:*:*

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