CVE-2026-115754
SSVC: noneserialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function body
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CVSS v3.1 (listed by NVD)
4.7
MEDIUM
Scored by vulncheck.com (not yet scored by NVD)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0 (listed by NVD)
2.3
LOW
Scored by vulncheck.com (not yet scored by NVD)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS (listed by CVE.org)
2.3
LOW
Scored by CNA (VulnCheck) · v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS exploit probability
0.3%
Percentile 24.1%
as of 2026-10-24
CISA KEV
—
Not listed
SSVC (CISA ADP)
none
Automatable: no / Impact: partial
Attack conditions and impact
Derived from the CNA (via NVD) CVSS 3.1 vector
NetworkNo authUser actionConditions
Scope change
Confidentiality LIntegrity LAvailability N
| Metric | Value | Meaning |
|---|---|---|
| Attack vector AV | N | Network |
| Attack complexity AC | H | High (conditions required) |
| Privileges required PR | N | None |
| User interaction UI | R | Required |
| Scope S | C | Changed (affects other components) |
| Confidentiality C | L | Low |
| Integrity I | L | Low |
| Availability A | N | None |
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
NVD
serialize-javascript from 7.0.1 before 7.1.3 contains a cross-site scripting vulnerability that allows attackers to break out of HTML script elements by ending serialized function source text with an unescaped </script. Attackers controlling a function's source via a spoofed toString() can combine surrounding output delimiters and later values to inject live markup such as img onerror handlers.
CVSS assessments
| Provider | Version | Score | Vector |
|---|---|---|---|
| NVD / [email protected] (Secondary) | 4.0 | 2.3 LOW | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD / [email protected] (Secondary) | 3.1 | 4.7 MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA / VulnCheck | 4.0 | 2.3 LOW | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| CNA / VulnCheck | 3.1 | 4.7 MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| yahoo | serialize-javascript | affected: 7.0.1 … < 7.1.3 default: unaffected |
Linux distribution status
Red Hat ↗ moderate
| Release | Package | Status | Fixed version / notes |
|---|---|---|---|
| Red Hat Hardened Images | dotnet10.0 | not affected | |
| Red Hat Hardened Images | dotnet8.0 | not affected | |
| Red Hat Hardened Images | dotnet9.0 | not affected | |
| Red Hat Hardened Images | grafana12.4 | affected | |
| Red Hat Hardened Images | grafana13.1 | not affected | |
| Red Hat Hardened Images | grafana13.2 | not affected | |
| Red Hat Hardened Images | prometheus3.13 | not affected |
Debian ↗
| Release | Package | Status | Fixed version / notes |
|---|---|---|---|
| bookworm | node-serialize-javascript | open not yet assigned | |
| forky | node-serialize-javascript | open not yet assigned | |
| sid | node-serialize-javascript | open not yet assigned | |
| trixie | node-serialize-javascript | open not yet assigned |
Ubuntu ↗ Fetching
References (5)
- https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61 NVD, CNA patch
- https://github.com/yahoo/serialize-javascript/pull/235 NVD, CNA patchissue-tracking
- https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3 NVD, CNA release-notes
- https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29v NVD, CNA vendor-advisory
- https://www.vulncheck.com/advisories/serialize-javascript-7.0.1-before-7.1.3-xss-via-unescaped-script-in-function-body NVD, CNA third-party-advisory