CVE-2023-25571

MEDIUMNVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.8 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 28% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Backstage is an open platform for building developer portals. @backstage/catalog-model prior to version 1.2.0, @backstage/core-components prior to 0.12.4, and @backstage/plugin-catalog-backend prior to 1.7.2 are affected by a cross-site scripting vulnerability. This vulnerability allows a malicious actor with access to add or modify content in an instance of the Backstage software catalog to inject script URLs in the entities stored in the catalog. If users of the catalog then click on said URLs, that can lead to an XSS attack.

This vulnerability has been patched in both the frontend and backend implementations. The default Link component from @backstage/core-components version 1.2.0 and greater will now reject javascript: URLs, and there is a global override of window.open to do the same. In addition, the catalog model v0.12.4 and greater as well as the catalog backend v1.7.2 and greater now has additional validation built in that prevents javascript: URLs in known annotations. As a workaround, the general practice of limiting access to modifying catalog content and requiring code reviews greatly help mitigate this vulnerability.

CVSS v3
6.8
EG Score
6.8(medium)
EPSS
36.4%
KEV
Not listed

Published

February 14, 2023

Last Modified

November 21, 2024

References (4)

Affected Packages

(3 across 1 ecosystem)
npm(3)
PackageVulnerable rangeFixed inDependents
@backstage/catalog-model—1.2.0—
@backstage/core-components—0.12.4—
@backstage/plugin-catalog-backend—1.7.2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-12 05:45 UTCEPSS rescore
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  3. 2026-07-11 08:25 UTCEPSS rescore
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  20. 2026-06-28 05:22 UTCOSV refresh
  21. 2026-06-28 04:54 UTCEPSS rescore
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  1. 2026-06-24 14:03 UTCEPSS rescore
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  24. 2026-06-11 13:59 UTCEPSS rescore
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  26. 2026-06-10 22:17 UTCEPSS rescore
  27. 2026-06-10 16:17 UTCOSV refresh
  28. 2026-06-10 13:21 UTCEPSS rescore
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  48. 2026-05-31 22:29 UTCEPSS rescore
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  62. 2026-05-26 07:17 UTCEPSS rescore
  63. 2026-05-25 06:47 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-25571?
CVE-2023-25571 is a medium vulnerability published on February 14, 2023. Backstage is an open platform for building developer portals. @backstage/catalog-model prior to version 1.2.0, @backstage/core-components prior to 0.12.4, and @backstage/plugin-catalog-backend prior to 1.7.2 are affected by a cross-site scripting vulnerability. This vulnerability allows a malicious…
When was CVE-2023-25571 disclosed?
CVE-2023-25571 was first published in the National Vulnerability Database on February 14, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-25571 actively exploited?
CVE-2023-25571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-25571?
CVE-2023-25571 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2023-25571?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-25571, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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