VulnerabilityPublished 20 Nov 2025

CVE-2025-13450: SourceCodester Online Shop Project · Cross-site Scripting

Affects SourceCodester Online Shop ProjectSource 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: 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
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: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within 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: None: There is no impact to availability within 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 20 Nov 2025
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
SourceCodester Online Shop Project	Affected =1.0	Fixed in–

AI-suggested

To mitigate CVE-2025-13450, organizations should first check for any official patches or updates from SourceCodester and apply them promptly. In the absence of patches, developers should implement strict input validation and output encoding on the f_name parameter to neutralize malicious scripts. Utilizing frameworks or libraries that automatically handle XSS protection is recommended. Deploying a robust Content Security Policy (CSP) can help restrict the execution of unauthorized scripts. Web Application Firewalls (WAFs) should be configured to detect and block suspicious payloads targeting the vulnerable parameter. Regular security testing, including automated scanning and manual code reviews focused on input handling, should be conducted. Educating users about the risks of clicking unknown links can reduce successful exploitation via social engineering. Monitoring web traffic for unusual patterns and setting up alerts for potential XSS attempts can aid in early detection. Finally, organizations should consider migrating to more secure or actively maintained e-commerce platforms if feasible.

Description

A vulnerability was determined in SourceCodester Online Shop Project 1.0. Impacted is an unknown function of the file /shop/register.php. This manipulation of the argument f_name causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

Impact

For European organizations using the SourceCodester Online Shop Project 1.0, this vulnerability poses a moderate risk. Exploitation could allow attackers to execute arbitrary scripts in users' browsers, leading to session hijacking, theft of sensitive information such as credentials or personal data, and phishing attacks that could compromise customer trust and brand reputation. While the impact on system availability is negligible, the integrity and confidentiality of user data could be compromised. Given the e-commerce context, this could result in financial losses and regulatory compliance issues under GDPR due to exposure of personal data. The requirement for user interaction somewhat limits the scope, but the remote attack vector and lack of authentication make it accessible to a wide range of attackers. Organizations relying on this software without timely patching or mitigation are at risk of targeted attacks, especially during high-traffic periods such as sales or holidays. Additionally, the public disclosure of the vulnerability increases the likelihood of exploitation attempts by opportunistic attackers.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Nov 2025, 04:46 UTC

Technical details

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