How severe is CVE-2021-23411?

CVE-2021-23411 has a CVSS 3.x base score of 5.4, 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-2021-23411 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23411?

CVE-2021-23411 affects Anchorme Project Anchorme. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23411?

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

When was CVE-2021-23411 published?

CVE-2021-23411 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-23411

CVE-2021-23411 is a medium-severity vulnerability in Anchorme Project Anchorme with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Anchorme Project Anchorme
Published: 2021-07-21
Last modified: 2026-06-17

Description

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the main functionality. It accepts input that can result in the output (an anchor a tag) containing undesirable Javascript code that can be executed upon user interaction.

Frequently asked questions

What is CVE-2021-23411?: Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the main functionality. It accepts input that can result in the output (an anchor a tag) containing undesirable Javascript code that can be executed upon user interaction.
How severe is CVE-2021-23411?: CVE-2021-23411 has a CVSS 3.x base score of 5.4, 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-2021-23411 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23411?: CVE-2021-23411 affects Anchorme Project Anchorme. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23411?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23411 published?: CVE-2021-23411 was published on 2021-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:anchorme_project:anchorme:*:*:*:*:*:node.js:*:*

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 →