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CVE-2021-25082

41
FAUCET Score

CVE-2021-25082 is a Local File Inclusion vulnerability affecting the Popup Builder WordPress plugin prior to version 4.0.7. This flaw allows an authenticated attacker to manipulate the sgpb_type parameter, potentially leading to Remote Code Execution (RCE) through PHP wrappers. With a CVSS score of 8.8 (High) and a FAUCET Risk Score of 97/100, this vulnerability poses a significant threat, enabling full compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, Nuclei templates exist for critical RCE exploitation, though there is no evidence of active exploitation, Metasploit modules, or public exploit code on ExploitDB, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.7CPE matchmatch criteria
cpe:2.3:a:sygnoos:popup_builder:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.23%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-25082 · Nov 20, 2025
This CVE's current EPSS score of 0.0523 is in the 91st percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / changeset/2659117
Release NotesThird Party Advisory
wpscan.com / vulnerability/0f90f10c-4b0a-46da-ac1f-aa6a03312132
ExploitThird Party Advisory