Base64 Encoder/Decoder <= 0.9.2 - Stored XSS via CSRF
Priority LOW 12CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-352.
Summary
The Base64 Encoder/Decoder WordPress plugin through 0.9.2 does not have CSRF check when updating its settings, and is missing sanitisation as well as escaping, which could allow attackers to make logged in admin add Stored XSS payloads via a CSRF attack
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Base64 Encoder/Decoder | up to 0.9.2 | — | No fix listed | CNA |
- Base64 Encoder/Decoder VendorUnknown Affected up to 0.9.2 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mranderson:base64_encoder\/decoder:*:*:*:*:*:wordpress:*:* | up to 0.9.2 | Vulnerable | Mranderson |
- cpe:2.3:a:mranderson:base64_encoder\/decoder:*:*:*:*:*:wordpress:*:* Versions up to 0.9.2 Vulnerable ·Mranderson
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-3823
- 2026-10-03 Alias added: GHSA-7gh2-59h4-gcm3
References
More Mranderson Base64 Encoder/decoder vulnerabilities
- TI-2024-03568 Base64 Encoder/Decoder <= 0.9.2 - Settings Reset via CSRF CVSS 3.1MEDIUM 5.5
- TI-2024-03566 Base64 Encoder/Decoder <= 0.9.2 - Reflected XSS CVSS 3.1MEDIUM 4.8
Sources
- CVE-2024-3823 · CVE Program
- CVE-2024-3823 · NVD
- FIRST EPSS
- GHSA-7gh2-59h4-gcm3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences