Cross Site Scripting Vulnerability in Yealink SIP-T21P E2 by Yealink
CVE-2025-14228

5.1MEDIUM

Key Information:

Vendor

Yealink

Status
Sip-t21p E2
Vendor
CVE Published:
8 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-14228?

A security flaw exists in the Yealink SIP-T21P E2 device, specifically within the Local Directory Page component, allowing cross site scripting (XSS) attacks. This vulnerability enables attackers to inject malicious scripts that can execute remotely, compromising user data and system integrity. The flaw affects devices that are no longer supported, as the vendor has not responded to prior disclosures regarding this issue. As the exploit is publicly available, it poses a significant risk to organizations using this obsolete product.

Affected Version(s)

SIP-T21P E2 52.84.0.15

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-14228 - Proof of Concept

References

https://vuldb.com/?id.334670
vdb-entry
https://vuldb.com/?ctiid.334670
signaturepermissions-required
https://vuldb.com/?submit.701949
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

cccll (VulDB User)
JSON
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CVE-2025-14228 : Cross Site Scripting Vulnerability in Yealink SIP-T21P E2 by Yealink