VulnerabilityPublished 25 Aug 2025

CVE-2025-53119: Securden Unified PAM · Unrestricted File Upload

Affects Securden Unified PAMSource CVE Database V5

Not known to be exploited · 14% EPSS · CVSS 7.5 High : upgrade to 9.1.0 soon.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

7.5High

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

EPSS: 14.9% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 9.1.0

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
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: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to 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 25 Aug 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

Upgrade Securden Unified PAM to 9.1.0.

Affected software

Product	Affected	Fixed in
Securden Unified PAM	Affected >=9.0.0 <9.1.0	Fixed in 9.1.0

AI-suggested

Since no official patches are currently available, European organizations should implement immediate compensating controls. These include restricting network access to the Unified PAM management interfaces to trusted IP addresses only, ideally via VPN or zero-trust network access solutions. Deploy web application firewalls (WAFs) with rules to detect and block suspicious file upload attempts and payloads. Conduct thorough monitoring and logging of all file upload activities and server-side execution attempts to detect anomalous behavior early. Disable or tightly control any features that allow file uploads if feasible. Organizations should also perform internal vulnerability assessments and penetration tests focused on the PAM environment to identify exploitation attempts. Finally, maintain strict segmentation of the PAM system from other critical network segments to limit lateral movement in case of compromise.

Description

An unauthenticated unrestricted file upload vulnerability allows an attacker to upload malicious binaries and scripts to the server.

Impact

For European organizations, the impact of this vulnerability can be severe due to the critical role that privileged access management solutions play in securing sensitive infrastructure and data. Compromise of a PAM system can lead to unauthorized access to critical systems, data breaches, and disruption of business operations. Given the GDPR and other strict data protection regulations in Europe, a breach resulting from this vulnerability could also lead to substantial regulatory penalties and reputational damage. Organizations in sectors such as finance, healthcare, government, and critical infrastructure are particularly at risk, as they rely heavily on PAM solutions to enforce strict access controls. The ability for an unauthenticated attacker to upload malicious files could facilitate ransomware deployment, espionage, or sabotage. Additionally, the vulnerability could be leveraged as a foothold for advanced persistent threat (APT) actors targeting European entities, especially those with strategic importance or sensitive data.

CWE-434Unrestricted Upload of File with Dangerous Type (opens in a new tab)
Base weaknessLikelihood of exploit: MediumCWE Top 25 (2025): #12OWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Architecture and Design
Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.
Architecture and Design · Enforcement by Conversion
When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
Architecture and Design
Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically.
OWASP Cheat Sheets
Server Side Request Forgery Prevention (opens in a new tab)
Web Service Security (opens in a new tab)
Third Party Javascript Management (opens in a new tab)
File Upload (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V12.5.2 (opens in a new tab)
V13.1.5 (opens in a new tab)
V12.2.1 (opens in a new tab)
Attack patterns
Accessing Functionality Not Properly Constrained by ACLs (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

rapid7.com/blog/post/securden-unified-pam-multiple-critical-vulnerabilities-fixed/ (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Aug 2025, 16:32 UTC

WeaknessesCWE-434

Technical details

References

Community reviews

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