VulnerabilityPublished 14 Oct 2025

CVE-2025-27906: IBM Content Navigator · Exposure of Information Through Directory Listing

Affects IBM Content NavigatorSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
IBM Content Navigator	Affected 3.0.11 – 3.2.0 4 affected builds	Fixed in–

AI-suggested

Immediately disable directory listing on the web server hosting IBM Content Navigator to prevent directory contents from being displayed.
Restrict access to the application URLs through network segmentation, firewall rules, or VPN requirements to limit exposure to trusted users only.
Monitor web server logs for unusual directory listing access attempts to detect potential reconnaissance activity.
Apply IBM vendor patches or updates as soon as they become available to address the vulnerability at the source.
Conduct a thorough security review of the IBM Content Navigator deployment, including permissions and exposure of other sensitive endpoints.
Implement web application firewalls (WAF) with rules to block directory listing requests or suspicious URL patterns.
Educate IT and security teams about this vulnerability to ensure timely response and remediation.
Consider deploying intrusion detection/prevention systems to identify exploitation attempts. These steps go beyond generic advice by focusing on configuration hardening, access control, and proactive monitoring specific to this vulnerability.

Description

IBM Content Navigator 3.0.11, 3.0.15, 3.1.0, and 3.2.0 could expose the directory listing of the application upon using an application URL. Application files and folders are visible in the browser to a user; however, the contents of the files cannot be read obtained or modified.

Impact

For European organizations, this vulnerability poses a moderate confidentiality risk by exposing internal directory structures of IBM Content Navigator deployments. While direct data theft or modification is not possible, the information leakage can aid attackers in crafting more effective attacks, including phishing, targeted malware, or exploitation of other vulnerabilities. Organizations handling sensitive or regulated data may face compliance risks if directory exposure leads to further compromise. The impact on integrity and availability is negligible. The ease of exploitation without authentication increases the threat surface, especially for internet-facing deployments. Given IBM Content Navigator's use in enterprise content management, sectors such as finance, government, and healthcare in Europe could be particularly concerned. The vulnerability could also indirectly facilitate supply chain attacks or lateral movement within networks if combined with other vulnerabilities or misconfigurations.

CWE-548Exposure of Information Through Directory Listing (opens in a new tab)
Variant weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.
Architecture and Design · System Configuration
Recommendations include restricting access to important directories or files by adopting a need to know requirement for both the document and server root, and turning off features such as Automatic Directory Listings that could expose private files and provide information that could be utilized by an attacker when…
OWASP Cheat Sheets
REST Assessment (opens in a new tab)
Error Handling (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V4.3.2 (opens in a new tab)
V8.3.4 (opens in a new tab)
V14.3.2 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

ibm.com/support/pages/node/7247854 (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Oct 2025, 14:53 UTC

WeaknessesCWE-548

Technical details

References

Community reviews

Related threats