CVE-2025-13999VulnerabilityPublished 19 Dec 2025

CVE-2025-13999: HTML5 Audio Player (WordPress plugin) · Server-Side Request Forgery (SSRF)

Affects HTML5 Audio Player (WordPress plugin)Source CVE Database V5

Not known to be exploited · CVSS 7.2 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

7.2High

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 14% 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:C/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Changed
Confidentiality: Low
Integrity: Low
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: 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: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 19 Dec 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 2026-10-25.

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

Affected software

Product	Affected	Fixed in
bplugins HTML5 Audio Player – The Ultimate No-Code Podcast, MP3 & Audio Player	Affected =2.4.0	Fixed in–

AI-suggested

To mitigate CVE-2025-13999, organizations should immediately assess their WordPress installations for the presence of the vulnerable bplugins HTML5 Audio Player plugin versions 2.4.0 through 2.5.1. If found, the plugin should be disabled or removed until a vendor patch is released. Network-level controls should be implemented to restrict outbound HTTP requests from the web server hosting WordPress, limiting them to only necessary destinations to reduce SSRF attack surface. Web Application Firewalls (WAFs) can be configured to detect and block suspicious requests targeting the getIcyMetadata() function or unusual request patterns indicative of SSRF attempts. Administrators should monitor logs for anomalous outbound connections and unusual internal service access. If patching is delayed, consider isolating the WordPress server in a segmented network zone with minimal access to internal resources. Additionally, review and harden internal services to require strong authentication and avoid trusting requests originating from the WordPress server. Regularly update all plugins and themes to the latest versions and subscribe to vulnerability advisories from the plugin vendor and WordPress security sources. Employing runtime application self-protection (RASP) solutions can also help detect and block SSRF exploitation attempts in real time.

Description

The HTML5 Audio Player – The Ultimate No-Code Podcast, MP3 & Audio Player plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions from 2.4.0 up to, and including, 2.5.1 via the getIcyMetadata() function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

Impact

The SSRF vulnerability in the bplugins HTML5 Audio Player plugin can have severe consequences for organizations running affected WordPress sites. Attackers can exploit this flaw to bypass network access controls and reach internal services that are not exposed to the internet, such as internal APIs, databases, or cloud metadata services. This can lead to unauthorized disclosure of sensitive information, including credentials, configuration data, or internal network topology. Additionally, attackers may manipulate internal services if they accept HTTP requests, potentially altering data or causing misconfigurations. The vulnerability does not directly cause denial of service but can be a stepping stone for more complex attacks, including lateral movement within the network or privilege escalation. Organizations with internal services relying on network segmentation for security are particularly at risk. The ease of exploitation without authentication or user interaction increases the likelihood of automated scanning and exploitation attempts once the vulnerability becomes widely known. This can result in data breaches, compliance violations, and reputational damage. The impact is magnified in environments where the plugin is used on publicly accessible WordPress sites integrated with sensitive backend systems.

CWE-918Server-Side Request Forgery (SSRF) (opens in a new tab)
Base weaknessCWE Top 25 (2025): #22OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
OWASP Cheat Sheets
Server Side Request Forgery Prevention (opens in a new tab)
Unvalidated Redirects and Forwards (opens in a new tab)
Cross Site Scripting Prevention (opens in a new tab)
DOM based XSS Prevention (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.6.1 (opens in a new tab)
V5.2.6 (opens in a new tab)
Attack patterns
Server Side Request Forgery (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Feb 2026, 10:39 UTC

WeaknessesCWE-918

Technical details

References

Community reviews

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