Security readout for executives and security teams
Plain-English summary
userSpice 4.3.24 can store attacker-controlled script content from an HTTP forwarding header. The script may run later when an administrator views the audit log. This is a medium-risk issue because exploitation requires an admin viewing the affected log, but it could expose admin session context or enable limited account-impacting actions.
Executive priority
Handle as a near-term web application security fix, not an emergency. Prioritize if userSpice supports privileged workflows, holds sensitive user data, or is exposed to the internet.
Technical view
The issue is reflected XSS stored through the X-Forwarded-For header on backup.php, later triggered in the audit log. CVSS 3.1 is 6.1 with network attack vector, low complexity, no privileges, required user interaction, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is limited to deployments running userSpice 4.3.24, especially internet-reachable admin functions or logs receiving untrusted X-Forwarded-For values. No other versions are identified in the provided sources.
Exploitation context
A public ExploitDB reference exists, but the source bundle does not show CISA KEV listing or confirmed active exploitation. Treat exploitability as plausible, not proven at scale.
Researcher notes
Evidence identifies one affected version and mechanism, but the bundle does not provide patch details, vendor fix version, or confirmed exploitation telemetry. Avoid expanding affected versions without additional vendor evidence.
Mitigation direction
- Inventory userSpice deployments and flag version 4.3.24 for review.
- Check UserSpice or advisory guidance for a fixed release or supported workaround.
- Restrict administrative audit-log access to trusted users and networks.
- Review proxy handling so untrusted clients cannot control forwarding headers.
- Prioritize remediation for internet-facing or high-privilege admin portals.
Validation and detection
- Confirm whether any deployed instance reports userSpice version 4.3.24.
- Review web and audit logs for suspicious script-like content in forwarded IP fields.
- Verify whether backup.php records X-Forwarded-For into admin-visible audit logs.
- Confirm remediation status against vendor or advisory guidance before closing.
- Avoid live exploit testing on production systems.
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-2018-25349 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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:N2.82.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-44871CVE reference, VulnCheck · exploit
- VulnCheck Advisory: userSpice 4.3.24 Cross-Site Scripting via X-Forwarded-For HeaderCVE reference, VulnCheck · third-party-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.