Barco ClickShare CX-20 Gen2 up to 02.26.00.0007 Wallpaper Upload /wallpaper improper validation of syntactic correctness of input

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Barco ClickShare CX-20 Gen2 up to 02.26.00.0007. This affects an unknown part of the file /wallpaper of the component Wallpaper Upload. Such manipulation of the argument wallpaper leads to improper validation of syntactic correctness of input. This vulnerability is uniquely identified as CVE-2026-100902. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to apply the recommended workaround. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Barco ClickShare CX-20 Gen2 up to 02.26.00.0007. Affected by this issue is an unknown functionality of the file /wallpaper of the component Wallpaper Upload. The manipulation of the argument wallpaper with an unknown input leads to a improper validation of syntactic correctness of input vulnerability. Using CWE to declare the problem leads to CWE-1286. The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax. Impacted is availability.

The weakness was disclosed by Abdullah Altamimi (0xWKZER). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-100902. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

The best possible mitigation is suggested to be Workaround.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-88069). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

Researcher Base Score: 7.5
Researcher Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper validation of syntactic correctness of input
CWE: CWE-1286 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Workaround
Status: 🔍

0-Day Time: 🔒

Workaround: Change factory-default credentials (admin:admin) immediately after deployment.

Timelineinfo

09/27/2026 Advisory disclosed
09/27/2026 +0 days VulDB entry created
09/28/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Researcher: Abdullah Altamimi (0xWKZER)
Status: Not defined

CVE: CVE-2026-100902 (🔒)
GCVE (CVE): GCVE-0-2026-100902
GCVE (VulDB): GCVE-100-410852
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/27/2026 10:59
Updated: 09/28/2026 20:40
Changes: 09/27/2026 10:59 (58), 09/28/2026 06:50 (1), 09/28/2026 20:36 (2), 09/28/2026 20:37 (14), 09/28/2026 20:40 (7)
Complete: 🔍
Submitter: WKZER
Committer: WKZER
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #919384: Barco ClickShare CX-20 Gen2 02.26.00.0007 Denial of Service (by WKZER)

Once again VulDB remains the best source for vulnerability data.

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