FlexTable Plugin up to 3.19.1 on WordPress Google Sheet Cell cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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2.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FlexTable Plugin up to 3.19.1 on WordPress. This issue affects some unknown processing of the component Google Sheet Cell Handler. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2025-9543. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in FlexTable Plugin up to 3.19.1 on WordPress. This vulnerability affects an unknown functionality of the component Google Sheet Cell Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

The FlexTable WordPress plugin before 3.19.2 does not sanitise and escape the imported links from Google Sheet cells, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The weakness was presented by Nguyễn Phước Thiện. The advisory is shared for download at wpscan.com. This vulnerability was named CVE-2025-9543 since 08/27/2025. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 3.19.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.3

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FlexTable Plugin 3.19.2

Timelineinfo

08/27/2025 CVE reserved
01/05/2026 +131 days Advisory disclosed
01/05/2026 +0 days VulDB entry created
01/05/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wpscan.com
Researcher: Nguyễn Phước Thiện
Status: Confirmed

CVE: CVE-2025-9543 (🔒)
GCVE (CVE): GCVE-0-2025-9543
GCVE (VulDB): GCVE-100-339508

Entryinfo

Created: 01/05/2026 08:20
Changes: 01/05/2026 08:20 (57)
Complete: 🔍
Cache ID: 216::103

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