VulnerabilityPublished 9 Jan 2026Updated 23 Feb 2026

CVE-2025-15495: BiggiDroid Simple PHP CMS · Unrestricted Upload

Affects BiggiDroid Simple PHP CMSSource CVE Database V5

Public exploit available · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score

5.1Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: High
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: Low
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system 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 Vulnerable System.
Vulnerable system 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 to the Vulnerable System.
Vulnerable system 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 Vulnerable System 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 Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, 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
BiggiDroidSimple PHP CMS	Affected =1.0	Fixed in–

CPE configurations (1)

cpe:2.3:a:biggidroid:simple_php_cms:*:*:*:*:*:*:*:*

AI-suggested

To mitigate CVE-2025-15495, organizations should immediately restrict access to the /admin/editsite.php interface to trusted administrators only, ideally via network segmentation or VPN access. Implement strict authentication and authorization controls, including multi-factor authentication for all administrative accounts. Conduct a thorough audit of user privileges to ensure only necessary personnel have high-level access. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious file upload attempts targeting the image parameter. Monitor logs for unusual upload activity or unauthorized file types. If possible, disable or restrict file upload functionality until a vendor patch is available. Consider deploying file integrity monitoring to detect unauthorized changes to web directories. Regularly back up website data and configurations to enable rapid recovery in case of compromise. Finally, maintain vigilance for any updates or patches from the vendor or community and apply them promptly once available.

Description

A vulnerability was found in BiggiDroid Simple PHP CMS 1.0. This impacts an unknown function of the file /admin/editsite.php. The manipulation of the argument image results in unrestricted upload. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

The primary impact of CVE-2025-15495 is the potential for attackers with administrative access to upload arbitrary files, which can lead to remote code execution, data breaches, or website defacement. This compromises the integrity and availability of the affected web application and may allow attackers to pivot to other parts of the network. Organizations relying on BiggiDroid Simple PHP CMS 1.0 for their web presence face risks of service disruption, reputational damage, and potential data loss. Since the vulnerability requires high privilege authentication, the impact is somewhat contained to environments where administrative credentials are compromised or weakly protected. However, the availability of public exploit code increases the risk of automated attacks targeting these systems. The lack of vendor response and absence of patches exacerbate the threat, forcing organizations to rely on workarounds or mitigations. Overall, the vulnerability could lead to significant operational and security consequences for affected organizations, especially those with sensitive or critical web applications.

Summary

CVE-2025-15495 is a vulnerability identified in BiggiDroid Simple PHP CMS version 1.0, specifically within the /admin/editsite.php file. The flaw arises from improper validation of the 'image' parameter, which allows an attacker with authenticated high privileges to perform unrestricted file uploads. This means an attacker can upload arbitrary files, including malicious scripts, without any restriction on file type or content. Such an upload could lead to remote code execution, website defacement, or further compromise of the underlying server. The vulnerability is remotely exploitable and does not require user interaction, but it does require the attacker to have high-level privileges within the CMS, which typically means administrative access. The vendor was notified early but has not issued any patches or mitigations, and no official fixes are available. Public exploit code has been released, increasing the likelihood of exploitation by threat actors. The CVSS 4.0 base score is 5.1 (medium severity), reflecting the requirement for high privileges and the limited scope of impact on confidentiality, integrity, and availability. The vulnerability does not affect the broader system components outside the CMS but poses a significant risk to the affected web applications and their data integrity.

References

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