CVE-2026-82883Network attack vectorHinoki check available

Reflected XSS via undisclosed input neutralization

Published Sep 2, 2026 · Updated Sep 3, 2026

Reflected XSS in Marcus Sykes Login With Ajax 4.5.1 and earlier allows remote attackers to run script in a victim's browser. Patchstack has not published the affected request parameter, code locus, or exact failure to neutralize reflected input during page generation. Exploitation is network-reachable and unauthenticated but requires a victim to interact with attacker-controlled content; the script executes with the affected origin's browser privileges.

CVSS severity7.1
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Reflected XSS in Marcus Sykes Login With Ajax 4.5.1 and earlier allows remote attackers to run script in a victim's browser. Patchstack has not published the affected request parameter, code locus, or exact failure to neutralize reflected input during page generation. Exploitation is network-reachable and unauthenticated but requires a victim to interact with attacker-controlled content; the script executes with the affected origin's browser privileges.

The record

CVE
CVE-2026-82883
Published
Sep 2, 2026
Updated
Sep 3, 2026
Vendor
Marcus Sykes
Product
Login With Ajax
Classifications
CWE-79, CAPEC-591
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=4.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Marcus Sykes · Login With Ajaxversion=n/a <=4.5.1

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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

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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