CVE-2023-34375Network attack vector

Browser script execution via unescaped request input

Published Nov 16, 2023 · Updated Apr 28, 2026

Reflected XSS in 10Web SEO by 10Web 1.2.9 and earlier allows remote attackers to run scripts in a victim's browser. Public advisories identify only an unknown request parameter and state that its value is reflected without sufficient sanitization or output escaping. Exploitation requires no account but requires a victim to open an attacker-crafted link; the script runs in the affected site's origin.

CVSS severity6.1
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in 10Web SEO by 10Web 1.2.9 and earlier allows remote attackers to run scripts in a victim's browser. Public advisories identify only an unknown request parameter and state that its value is reflected without sufficient sanitization or output escaping. Exploitation requires no account but requires a victim to open an attacker-crafted link; the script runs in the affected site's origin.

The record

CVE
CVE-2023-34375
Published
Nov 16, 2023
Updated
Apr 28, 2026
Vendor
10Web
Product
SEO by 10Web
Classifications
CWE-79, CAPEC-591, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=n/a <=1.2.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

10Web · SEO by 10Webversion=n/a <=1.2.9

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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