Base64 Encoder/Decoder <= 0.9.2 - Reflected XSS
Priority LOW 23CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Base64 Encoder/Decoder WordPress plugin through 0.9.2 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00747 55th 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-2024-3822
- 2026-10-03 Alias added: GHSA-56m5-6v25-whgm
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-2024-03567 Base64 Encoder/Decoder <= 0.9.2 - Stored XSS via CSRF CVSS 3.1LOW 2.4
Sources
- CVE-2024-3822 · CVE Program
- CVE-2024-3822 · NVD
- FIRST EPSS
- GHSA-56m5-6v25-whgm · 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