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CVE-2022-25875

21
FAUCET Score

CVE-2022-25875 is a medium-severity Cross-site Scripting (XSS) vulnerability affecting versions of the Svelte framework prior to 3.49.0. It arises from improper input sanitization and attribute escaping during Server-Side Rendering (SSR) when handling objects with custom toString() functions. Exploitation requires user interaction and could lead to low impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.49.0CPE matchmatch criteria
cpe:2.3:a:svelte:svelte:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 80th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: svelteFixed in: 3.49.0

Vendor Advisories (1)

npmGHSA-wv8q-r932-8hc7medium

Svelte vulnerable to XSS when using objects during server-side rendering

Jul 13, 2022

References

github.com / sveltejs/svelte/commit/f8605d6acbf66976da9b4547f76e90e163899907
ExploitPatchThird Party Advisory
github.com / sveltejs/svelte/pull/7530%23issuecomment-1158575990
Broken Link
snyk.io / vuln/SNYK-JS-SVELTE-2931080
ExploitPatchThird Party Advisory