CVE-2026-115897: falha de baixa gravidade em yahoo serialize-javascript
Serialize JavaScript: Cross-site scripting (XSS) via unescaped </script at the end of a serialized function body
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8Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 2.1epss 0.3%
Serialize JavaScript serializes JavaScript values to a superset of JSON that includes regular expressions and functions. Prior to 7.1.3, the function-source escaping logic does not neutralize a bare closing-script prefix when attacker-influenced function source text ends exactly at that prefix. Because each function body is escaped independently, a delimiter supplied by surrounding serialized output can terminate an HTML script element, and a later serialized value supplies injected markup that becomes a live element in the page. Exploitation requires control of a serialized function's source text, such as through a spoofed toString(). This issue is fixed in version 7.1.3.
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Produtos afetados
yahoo · serialize-javascriptCVEs relacionadas — yahoo serialize-javascript
No mesmo produto, das mais perigosas para as menos.
CVE-2019-16769MEDIUMAffected versions of serialize-javascript are vulnerable to Cross-site Scripting (XSS)EPSS 0.8%CVE-2026-34043MEDIUMSerialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objectsEPSS 0.5%CVE-2026-97711LOWSerialize JavaScript: Cross-site scripting (XSS) via unescaped </script> in serialized function bodiesEPSS 0.3%CVE-2026-115754LOWserialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function bodyEPSS 0.2%
Referências
https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61https://github.com/yahoo/serialize-javascript/pull/235https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29v