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CVE-2023-5877

30
FAUCET Score

CVE-2023-5877 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting the affiliate-toolkit WordPress plugin prior to version 3.4.3. It allows unauthenticated attackers to send requests to arbitrary URLs, including internal network addresses, due to a lack of authorization and authentication on the 'atkp_imagereceiver.php' endpoint. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, potentially leading to full compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV: No), the vulnerability has garnered significant community discussion with 10 mentions, and exploit code has been observed on GitHub, indicating a high potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.4.3CPE matchmatch criteria
cpe:2.3:a:servit:affiliate-toolkit:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
55.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 41st percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wpscan.com / vulnerability/39ed4934-3d91-4924-8acc-25759fef9e81
ExploitThird Party Advisory