CVE-2021-24994Public exploitNetwork attack vector

Stored XSS via unescaped remote-storage account name

Published Feb 28, 2022 · Updated Aug 3, 2024

Stored XSS in WPvivid Backup & Migration before 0.9.69 allows remote attackers to run script in an administrator's browser. The Google Drive and OneDrive remote-storage callbacks accept an unauthenticated name parameter and store it without adequate sanitization before embedding it unescaped in the plugin administration page. Execution requires an administrator to open the WPvivid page, where the payload runs in that privileged browser context and can act on or read accessible site data.

CVSS severity6.1
Medium
EPSS probability1.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored XSS in WPvivid Backup & Migration before 0.9.69 allows remote attackers to run script in an administrator's browser. The Google Drive and OneDrive remote-storage callbacks accept an unauthenticated name parameter and store it without adequate sanitization before embedding it unescaped in the plugin administration page. Execution requires an administrator to open the WPvivid page, where the payload runs in that privileged browser context and can act on or read accessible site data.

The record

CVE
CVE-2021-24994
Published
Feb 28, 2022
Updated
Aug 3, 2024
Vendor
WPvivid Plugins
Product
WPvivid Backup & Migration
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.9.69 <0.9.69

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPvivid Plugins · WPvivid Backup & Migrationversion=0.9.69 <0.9.69

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo