CVE-2021-31693Public exploitNetwork attack vector

Reflected XSS via unencoded frontend data parameters

Published Nov 29, 2022 · Updated Feb 13, 2025

Reflected XSS in 10Web Photo Gallery through 1.5.68 allows remote attackers to run script in a visitor's browser via crafted requests. The bwg_frontend_data handler returns album_gallery_id_0, bwg_album_search_0, or type_0 input in page output without safe encoding. Exploitation requires a visitor to open the crafted request, after which the script can read or alter content available to that visitor in the site origin.

CVSS severity6.1
Medium
EPSS probability0.42%
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 Photo Gallery through 1.5.68 allows remote attackers to run script in a visitor's browser via crafted requests. The bwg_frontend_data handler returns album_gallery_id_0, bwg_album_search_0, or type_0 input in page output without safe encoding. Exploitation requires a visitor to open the crafted request, after which the script can read or alter content available to that visitor in the site origin.

The record

CVE
CVE-2021-31693
Published
Nov 29, 2022
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NIST National Vulnerability DatabaseCVSS: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')

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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