POST SMTP Mailer Plugin up to 2.7.0 on WordPress Email Message Content cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in POST SMTP Mailer Plugin up to 2.7.0 on WordPress and classified as problematic. This affects an unknown part of the component Email Message Content Handler. This manipulation causes cross site scripting. This vulnerability appears as CVE-2023-5958. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in POST SMTP Mailer Plugin up to 2.7.0 on WordPress (WordPress Plugin). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Email Message Content 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. The summary by CVE is:

The POST SMTP Mailer WordPress plugin before 2.7.1 does not escape email message content before displaying it in the backend, allowing an unauthenticated attacker to perform XSS attacks against highly privileged users.

The weakness was presented 11/27/2023 by Marcin Węgłowski. The advisory is shared at wpscan.com. This vulnerability is known as CVE-2023-5958 since 11/03/2023. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 2.7.1 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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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: POST SMTP Mailer Plugin 2.7.1

Timelineinfo

11/03/2023 🔍
11/27/2023 +24 days 🔍
11/27/2023 +0 days 🔍
06/04/2025 +555 days 🔍

Sourcesinfo

Advisory: wpscan.com
Researcher: Marcin Węgłowski
Status: Confirmed

CVE: CVE-2023-5958 (🔍)
GCVE (CVE): GCVE-0-2023-5958
GCVE (VulDB): GCVE-100-246193

Entryinfo

Created: 11/27/2023 17:45
Updated: 06/04/2025 17:45
Changes: 11/27/2023 17:45 (42), 12/17/2023 08:59 (11), 06/04/2025 17:45 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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