Description
A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, the attacker could inject and execute arbitrary JavaScript code. This allows the attacker to perform actions within the victim's authenticated session, potentially leading to full administrative control if an IdM administrator is targeted.
Published: 2026-09-09
Score: 8.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

An unauthenticated remote attacker can exploit a DOM Cross‑Site Scripting flaw in the FreeIPA/IdM Web UI password reset page. By delivering a specially crafted link to a victim, the attacker injects and runs arbitrary JavaScript within the victim’s authenticated session. This allows the attacker to perform a wide range of actions on the target system, potentially gaining full administrative control if a privileged account is targeted. The weakness is a typical Reflected or Stored XSS, classified as CWE‑79.

Affected Systems

The vulnerability affects Red Hat Enterprise Linux releases 6, 7, 8, 9, and 10 that run FreeIPA/IdM with the Web UI component. Administrators using the password reset feature on any of these platforms are susceptible.

Risk and Exploitability

The CVSS score of 8.1 categorizes this flaw as High severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog, yet the impact remains significant because the attacker only needs to entice a password‑reset action from a victim. The likely attack vector is an HTTP(S) request to the affected page; the attacker must craft a malicious URL delivered via email or other social‑engineering channels. Once a user completes the reset, the injected script executes in the context of the victim’s session, potentially escalating privileges.

Generated by OpenCVE AI on September 9, 2026 at 17:21 UTC.

Remediation

Vendor Workaround

Restrict network access to the FreeIPA/IdM Web UI to trusted networks only. This can be achieved by configuring firewall rules to limit access to the IdM server's web interface (typically port 443 for HTTPS) from specific IP addresses or subnets. For example, using `firewalld` on RHEL, you can add a rich rule to allow access only from trusted sources. Ensure that any firewall changes are persistent across reboots and that the firewall service is reloaded or restarted for changes to take effect, which may temporarily disrupt access to the IdM Web UI.


OpenCVE Recommended Actions

  • Restrict network access to the FreeIPA/IdM Web UI to trusted networks only, for example by adding a firewall rule that allows HTTPS (port 443) only from known IP addresses or subnets.
  • Ensure the firewall configuration persists across reboots and reload or restart the firewall service to apply the new rule, keeping in mind that it may temporarily interrupt access to the Web UI.
  • Apply any vendor‑released patches or updates to FreeIPA/IdM as soon as they become available to eliminate the underlying XSS vulnerability.

Generated by OpenCVE AI on September 9, 2026 at 17:21 UTC.

Tracking

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Advisories

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History

Wed, 09 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, the attacker could inject and execute arbitrary JavaScript code. This allows the attacker to perform actions within the victim's authenticated session, potentially leading to full administrative control if an IdM administrator is targeted.
Title Freeipa: ipa: freeipa/idm: cross-site scripting vulnerability allows arbitrary code execution via crafted url
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-79
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}


Subscriptions

Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-09T16:39:18.993Z

Reserved: 2026-07-28T19:02:19.150Z

Link: CVE-2026-18147

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-09T17:17:17.007

Modified: 2026-09-09T20:14:26.883

Link: CVE-2026-18147

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-09T17:30:07Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')