Security readout for executives and security teams
Plain-English summary
CVE-2025-34172 is a reflected cross-site scripting issue in the pfSense CE HAProxy package. An authenticated pfSense user could be exposed if they interact with a crafted request that reflects the showsticktablecontent value in the HAProxy statistics page. Business impact is mainly administrative-session abuse risk, not direct unauthenticated firewall compromise.
Executive priority
Treat as a scheduled security fix for affected pfSense CE HAProxy installations. It is not described as actively exploited or unauthenticated, but it affects firewall administration context, so remediation should not be deferred indefinitely.
Technical view
The issue is in /usr/local/www/haproxy/haproxy_stats.php in HAProxy package 0.63_10 for pfSense CE. The showsticktablecontent GET parameter is displayed after being read, creating CWE-79 reflected XSS. CVSS v4.0 is 4.8 with low attack complexity, low privileges, active user interaction, and limited confidentiality/scope impact.
Likely exposure
Exposure is likely limited to pfSense CE deployments with the HAProxy package version 0.63_10 installed and reachable by authenticated users. The source bundle lists the default status as unaffected outside the named affected package/version. Internet exposure depends on whether the pfSense management interface or HAProxy package pages are accessible.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no supplied source states active exploitation. Exploitation requires an authenticated victim and user interaction, which reduces likelihood but still matters for administrators managing security infrastructure.
Researcher notes
Key limits are authenticated context, active user interaction, and the specific reflected parameter in haproxy_stats.php. The provided evidence identifies a patch commit and issue tracker entry, but does not provide exploit telemetry or a clearly named fixed package version in the bundle.
Mitigation direction
- Apply the vendor patch or fixed HAProxy package guidance from pfSense/Netgate sources.
- Review the pfSense Redmine issue for the corrected package/version status.
- Limit pfSense administrative interface access to trusted management networks.
- Avoid interacting with untrusted links while authenticated to pfSense administration.
- Monitor vendor advisories for any updated remediation details.
Validation and detection
- Inventory pfSense CE systems for the HAProxy package and installed version.
- Confirm whether HAProxy package 0.63_10 is present on any pfSense CE host.
- Check whether /usr/local/www/haproxy/haproxy_stats.php exists on affected systems.
- Verify that vendor patch or package update status matches pfSense guidance.
- Review administrative access paths to confirm management pages are not broadly exposed.
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-2025-34172 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
- 4.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA: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
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
4.8MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA: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
- https://github.com/pfsense/FreeBSD-ports/commit/04d1328ab077830eb57a24bb7018c812b6358c64CVE reference, VulnCheck · patch
- https://redmine.pfsense.org/issues/16411CVE reference, VulnCheck · issue-tracking
- https://www.vulncheck.com/advisories/netgate-pf-sense-ce-ha-proxy-reflected-xssCVE 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.