How severe is CVE-2021-3150?

CVE-2021-3150 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-2021-3150 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3150?

CVE-2021-3150 affects Cryptshare Cryptshare Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3150?

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

When was CVE-2021-3150 published?

CVE-2021-3150 was published on 2021-03-15 and last updated on 2026-06-17.

CVE-2021-3150

CVE-2021-3150 is a medium-severity vulnerability in Cryptshare Cryptshare Server 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% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cryptshare Cryptshare Server
Published: 2021-03-15
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability on the Delete Personal Data page in Cryptshare Server before 4.8.0 allows an attacker to inject arbitrary web script or HTML via the user name. The issue is fixed with the version 4.8.1

Frequently asked questions

What is CVE-2021-3150?: A cross-site scripting (XSS) vulnerability on the Delete Personal Data page in Cryptshare Server before 4.8.0 allows an attacker to inject arbitrary web script or HTML via the user name. The issue is fixed with the version 4.8.1
How severe is CVE-2021-3150?: CVE-2021-3150 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-2021-3150 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3150?: CVE-2021-3150 affects Cryptshare Cryptshare Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3150?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3150 published?: CVE-2021-3150 was published on 2021-03-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cryptshare:cryptshare_server:*:*:*:*:*:*:*:*

More vulnerabilities in Cryptshare Cryptshare Server

CVE-2021-42564 — Medium (CVSS 5.4): An open redirect through HTML injection in confidential messages in Cryptshare before 5.1.0 allows remote attackers…

All CVEs affecting Cryptshare Cryptshare Server →

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

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
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…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →