How severe is CVE-2022-30777?

CVE-2022-30777 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-2022-30777 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30777?

CVE-2022-30777 affects Parallels H-sphere. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-30777?

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

When was CVE-2022-30777 published?

CVE-2022-30777 was published on 2022-05-16 and last updated on 2026-06-17.

CVE-2022-30777

CVE-2022-30777 is a medium-severity vulnerability in Parallels H-sphere 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: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Parallels H-sphere
Published: 2022-05-16
Last modified: 2026-06-17

Description

Parallels H-Sphere 3.6.1713 allows XSS via the index_en.php from parameter.

Frequently asked questions

What is CVE-2022-30777?: Parallels H-Sphere 3.6.1713 allows XSS via the index_en.php from parameter.
How severe is CVE-2022-30777?: CVE-2022-30777 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-2022-30777 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30777?: CVE-2022-30777 affects Parallels H-sphere. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-30777?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-30777 published?: CVE-2022-30777 was published on 2022-05-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:parallels:h-sphere:3.6.2:*:*:*:*:*:*:*

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