Published:2022/07/25 Last Updated:2022/07/25
JVN#77850327
WordPress Plugin "Newsletter" vulnerable to cross-site scripting
Overview
WordPress Plugin "Newsletter" contains a cross-site scripting vulnerability.
Products Affected
- Newsletter prior to 7.4.5
Description
WordPress Plugin "Newsletter" provided by Stefano Lissa & The Newsletter Team contains a cross-site scripting vulnerability (CWE-79).
Impact
An arbitrary script may be executed on the web browser of the user who is logging in to the WordPress using the plugin with the administrative privilege.
Solution
Update the plugin
Update the plugin to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Stefano Lissa & The Newsletter Team | Newsletter – Send awesome emails from WordPress |
References
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WPScan
WordPress Plugin Vulnerabilities | Newsletter < 7.4.5 - Reflected Cross-Site Scripting
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score:
6.1
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
CVSS v2
AV:N/AC:H/Au:N/C:N/I:P/A:N
Base Score:
2.6
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Gen Sato of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2022-1756 |
| JVN iPedia |
JVNDB-2022-000057 |