CVE-2024-44794Public exploitNetwork attack vector

Client-side script execution via unescaped error description

Published Aug 26, 2024 · Updated Jul 5, 2026

Reflected XSS in PicUploader commit fcf82ea allows remote attackers to execute arbitrary web scripts through error_description. OnedriveRedirect.php passes the parameter directly to PHP's echo operation without encoding or filtering it for an HTML response. A victim must follow a crafted URL; the injected markup then runs in that browser under PicUploader's origin, enabling page-data access or modification.

CVSS severity6.1
Medium
EPSS probability0.29%
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 PicUploader commit fcf82ea allows remote attackers to execute arbitrary web scripts through error_description. OnedriveRedirect.php passes the parameter directly to PHP's echo operation without encoding or filtering it for an HTML response. A victim must follow a crafted URL; the injected markup then runs in that browser under PicUploader's origin, enabling page-data access or modification.

The record

CVE
CVE-2024-44794
Published
Aug 26, 2024
Updated
Jul 5, 2026
Vendor
xiebruce
Product
PicUploader
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 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=fcf82ea

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

xiebruce · PicUploaderversion=fcf82ea

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

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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