Transbank Webpay < 1.14.0 - Unauthenticated Stored XSS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-6858
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-22 06:16:21 UTC
Updated2026-07-22 16:18:52 UTC
DescriptionThe Transbank Webpay WordPress plugin before 1.14.0 does not sanitize and escape logs to be displayed, allowing unauthenticated users to perform Stored XSS attacks against logged in administrator

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from ADP

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

EPSS: 0.001640000 probability, percentile 0.059990000 (date 2026-07-22)

Problem Types: CWE-79 | CWE-79 Cross-Site Scripting (XSS) | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Transbank Webpay affected 1.14.0 semver Not specified

References

ReferenceSourceLinkTags
hackedalert.com/research/transbank-webpay-plugin-xss-to-rce af854a3a-2127-422b-91ae-364da2661108 hackedalert.com
wpscan.com/vulnerability/81035d75-81a5-486a-a9fb-b0d1e0befe3c [email protected] wpscan.com
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: Mateo Contenla & Matías Schiappacasse (en)

CNA: WPScan (en)

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