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Seraphinite Accelerator CVE-2023-49740

HIGH
Cross-site Scripting (XSS) (CWE-79)
2023-12-14 audit@patchstack.com
XSS Seraphinite Accelerator S Sols
7.1
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-79
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 7.1 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. EPSS exploitation probability: 0.19%.
Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Seraphinite Solutions Seraphinite Accelerator allows Reflected XSS.20.28. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

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Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Seraphinite Solutions Seraphinite Accelerator allows Reflected XSS.20.28. Affected products include: S-Sols Seraphinite Accelerator. Version information: through 2.20.28..

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Seraphinite Solutions Seraphinite Accelerator allows Reflected XSS.This issue affects Seraphinite Accelerator: from n/a through 2.20.28.

Threat Intelligence Overview

EPSS Score
0.2%
Top 59% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:s-sols:seraphinite_accelerator:*:*:*:*:*:wordpress:*:*

More in Seraphinite Accelerator

View all
CVE-2026-17532 MEDIUM POC
6.1 Aug 05

Reflected Cross-Site Scripting in the Seraphinite Accelerator WordPress plugin (versions ≤ 2.29.15) allows unauthenticat
CVE-2023-5609 MEDIUM POC
6.1 Nov 20

The Seraphinite Accelerator WordPress plugin before 2.2.29 does not sanitise and escape a parameter before outputting it
CVE-2026-87828 MEDIUM POC
5.7 Sep 16

Denial of service in the Seraphinite Accelerator WordPress plugin (all versions before 2.29.24) lets any authenticated l
CVE-2023-5610 MEDIUM POC
5.4 Nov 20

The Seraphinite Accelerator WordPress plugin before 2.2.29 does not validate the URL to redirect any authenticated user

CVE-2023-5611 MEDIUM POC
5.3 Nov 27

The Seraphinite Accelerator WordPress plugin before 2.20.32 does not have authorisation and CSRF checks when resetting a
CVE-2024-1568 MEDIUM
6.4 Feb 28

The Seraphinite Accelerator plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and
CVE-2026-90960 MEDIUM
5.3 Oct 31

Unauthenticated attackers can read complete WordPress user records - including plaintext user_login and user_email, the

CVE-2026-3058 MEDIUM
4.3 Mar 04

The Seraphinite Accelerator WordPress plugin through version 2.28.14 fails to validate user permissions on the `seraph_a

Same weakness CWE-79 – Cross-site Scripting (XSS)

View all
CVE-2020-3580 MEDIUM POC
6.1
CVE-2013-7389 MEDIUM POC
4.3
CVE-2021-25299 MEDIUM POC
6.1
CVE-2014-2120 MEDIUM
6.1
CVE-2023-40000 HIGH POC
8.3
CVE-2016-8581 MEDIUM POC
6.1
CVE-2013-5223 MEDIUM POC
5.4
CVE-2025-52367 MEDIUM POC
5.4

Same technique XSS

View all
CVE-2017-9248 CRITICAL POC
9.8
CVE-2013-1710 CRITICAL POC
10.0
CVE-2024-52875 HIGH POC
8.8

References

Advisories & patches
REF https://patchstack.com/database/vulnerability/seraphinite-accelerator/wordpress-seraphinite-accelerator-plugin-2-20-28-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

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