CVE-2025-54757VulnerabilityPublished 31 Jul 2025

CVE-2025-54757: Alfasado PowerCMS · Unrestricted File Upload

Affects Alfasado PowerCMSSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: Low

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: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 31 Jul 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 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

AI-suggested

1. Immediately restrict file upload permissions to trusted users only and implement strict validation on file types and content to prevent dangerous file uploads. 2. Employ server-side filtering and sanitization of uploaded files, including MIME type verification and content inspection to block executable scripts or files masquerading as safe types. 3. Educate administrators to avoid opening or interacting with user-uploaded files directly in browsers until the vulnerability is patched. 4. Monitor logs for unusual file upload activity and access patterns to detect potential exploitation attempts early. 5. Deploy Content Security Policy (CSP) headers to limit the impact of any script execution in browsers. 6. Isolate the CMS administrative interface from general user upload areas to reduce exposure. 7. Prepare for patch deployment by closely monitoring Alfasado Inc. announcements and applying updates as soon as they become available. 8. Consider implementing multi-factor authentication (MFA) for administrative accounts to reduce the risk of session hijacking. 9. Conduct regular security audits and penetration testing focusing on file upload functionalities.

Description

Multiple versions of PowerCMS allow unrestricted upload of dangerous files. If a product administrator accesses a malicious file uploaded by a product user, an arbitrary script may be executed on the browser.

Impact

For European organizations using PowerCMS 6.7 or earlier, this vulnerability poses a tangible risk to the confidentiality, integrity, and availability of their content management systems. Since PowerCMS is often used to manage web content, exploitation could lead to unauthorized script execution in administrator browsers, potentially resulting in session hijacking, credential theft, or unauthorized administrative actions. This could disrupt business operations, lead to data breaches involving sensitive or personal data protected under GDPR, and damage organizational reputation. The requirement for authenticated user upload and administrator interaction reduces the risk somewhat but does not eliminate it, especially in environments where multiple users have upload privileges or where administrators frequently access user-uploaded content. The scope change in the CVSS vector indicates that the vulnerability could affect resources beyond the initially compromised component, potentially allowing attackers to escalate privileges or move laterally within the network. European organizations with strict compliance requirements and high-value web assets would be particularly impacted, as exploitation could lead to regulatory penalties and loss of customer trust.

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 31 Jul 2025, 07:47 UTC

Technical details

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