Base64 Encoder/Decoder <= 0.9.2 - Reflected XSS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-3822
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-15 06:15:14 UTC
Updated2026-07-29 13:51:12 UTC
DescriptionThe 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

Risk And Classification

Primary CVSS: v3.1 4.8 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.007410000 probability, percentile 0.510270000 (date 2026-07-30)

Problem Types: CWE-79 | CWE-79 Cross-Site Scripting (XSS)

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED4.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mranderson Base64 Encoder/decoder All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Base64 Encoder/Decoder affected 0.9.2 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/ff5411b1-9e04-4e72-a502-e431d774642a af854a3a-2127-422b-91ae-364da2661108 wpscan.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Francisco Spínola (en)

CNA: WPScan (en)

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