Security readout for executives and security teams
Plain-English summary
CVE-2025-10503 is a reflected cross-site scripting issue in WSO2 Identity Server 7.1.0. A victim must interact with attacker-supplied content targeting the authentication endpoint. Successful exploitation can alter what the user sees, redirect the browser, or access some browser information. Sources state httpOnly cookie protection prevents session hijacking through this flaw.
Executive priority
Treat as a moderate priority for identity environments. It does not allow direct session theft per the source, but it affects login surfaces and can support phishing or user manipulation. Remediate promptly where WSO2 Identity Server 7.1.0 is internet-facing or business-critical.
Technical view
The authentication endpoint accepts user-controlled input without expected validation and lacks proper output encoding, creating CWE-79 reflected XSS. CVSS is 6.1: network exploitable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Organizations running WSO2 Identity Server 7.1.0 may be exposed, especially where authentication endpoints are reachable by users or the internet. The source bundle lists other versions as unaffected by default, but teams should verify against WSO2’s advisory and their deployment inventory.
Exploitation context
No active exploitation is indicated by KEV or the provided sources. Exploitation requires convincing a user to interact with malicious content. The impact is meaningful for phishing, brand trust, and user deception, but the cited description says session hijacking is not possible due to httpOnly session cookies.
Researcher notes
Evidence is limited to the CVE record and WSO2 advisory reference in the source bundle. Do not assume affected versions beyond WSO2 Identity Server 7.1.0. No public exploit status or patch version is provided in the supplied data; consult the vendor advisory for precise remediation.
Mitigation direction
- Identify any WSO2 Identity Server 7.1.0 deployments.
- Review the WSO2 advisory for vendor-approved fixes or configuration guidance.
- Prioritize remediation for internet-facing or high-volume identity services.
- Maintain browser and identity-service hardening controls against XSS impact.
- Monitor WSO2 security advisories for updated remediation details.
Validation and detection
- Confirm deployed WSO2 Identity Server versions against asset inventory.
- Check whether authentication endpoints are externally reachable.
- Review application security test results for reflected XSS on authentication flows.
- Look for unusual authentication URLs, redirects, or user reports of altered login pages.
- Validate remediation using approved security testing after applying vendor guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-10503 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577/CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.