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CVE-2023-25571

18
FAUCET Score

CVE-2023-25571 is a cross-site scripting (XSS) vulnerability affecting specific versions of Backstage components: @backstage/catalog-model, @backstage/core-components, and @backstage/plugin-catalog-backend. A malicious actor with catalog modification privileges can inject script URLs into catalog entities, leading to XSS if users click these links. This vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and resulting in low impact to confidentiality and integrity. The EPSS score is low, suggesting a low probability of exploitation. Currently, there is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.0CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:backstage_catalog-model:*:*:*:*:*:node.js:*:*
< 0.12.4CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:backstage_core-components:*:*:*:*:*:node.js:*:*
< 1.7.2CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:backstage_plugin-catalog-backend:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
37.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 55th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @backstage/core-componentsFixed in: 0.12.4
npmpatch availablevia ghsa
Product: @backstage/catalog-modelFixed in: 1.2.0
npmpatch availablevia ghsa
Product: @backstage/plugin-catalog-backendFixed in: 1.7.2

Vendor Advisories (1)

npmGHSA-7hv8-3fr9-j2hvmedium

Cross site scripting Vulnerability in backstage Software Catalog

Feb 14, 2023

References

github.com / backstage/backstage/commit/3d1371954512f7fa8bd0e2d357e00eada2c3e8a8
Patch
github.com / backstage/backstage/security/advisories/GHSA-7hv8-3fr9-j2hv
Vendor Advisory