Medium severity · published Aug 27, 2026
CVE-2026-47877
Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
Spring Security Authorization Server's default consent page renders user-controlled values without HTML entity encoding.
Spring Security 7.1.0
Spring Security 7.0.0 - 7.0.6
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Spring Security · Spring
7.1.0; 7.0.0 through 7.0.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47877
Vendor Advisory
https://spring.io/security/cve-2026-47877
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