Multiple vulnerabilities in Sliced Invoices plugin for WordPress

Published: 2019-10-17 | Updated: 2019-10-31
Severity Medium
Patch available YES
Number of vulnerabilities 4
CVE ID N/A
CWE ID CWE-284
CWE-89
CWE-352
CWE-79
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #4 is available.
Vulnerable software Sliced Invoices – WordPress Invoice Plugin Subscribe
Vendor Sliced Invoices

Security Advisory

Updated 25.10.2019
Added proof-of-concept and updated CVSS score for vulnerability #2
Updated 31.10.2019
Added vulnerability #4

1) Improper access control

Severity: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-284 - Improper Access Control

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in core/class-sliced.php. A remote non-authenticated attacker can export all invoices and quotes that contain customer personal information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sliced Invoices – WordPress Invoice Plugin: 2.0.0, 2.0.2, 2.0.3, 2.04, 2.05, 2.06, 2.07, 2.08, 2.09, 2.10, 2.11, 2.12, 2.13, 2.14, 2.15, 2.16, 2.17, 2.18, 2.20, 2.21, 2.22, 2.23, 2.24, 2.25, 2.30, 2.31, 2.32, 2.33, 2.34, 2.35, 2.36, 2.40, 2.50, 2.60, 2.61, 2.62, 2.70, 2.71, 2.72, 2.80, 2.81, 2.82, 2.83, 2.84, 2.85, 2.86, 2.87, 2.861, 2.871, 2.872, 2.873, 2.874, 2.875, 2.876, 3.0.0, 3.0.1, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.2.0, 3.2.1, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.4.0, 3.4.1, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.6.6, 3.6.7, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.8.0, 3.8.1, 3.8.2

CPE External links

https://blog.nintechnet.com/multiple-vulnerabilities-in-sliced-invoices-plugin/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) SQL injection

Severity: Low

CVSSv3: 3.4 [CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in the duplicate_quote_invoice() function in core/class-sliced.php. A remote authenticated attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sliced Invoices – WordPress Invoice Plugin: 2.0.0, 2.0.2, 2.0.3, 2.04, 2.05, 2.06, 2.07, 2.08, 2.09, 2.10, 2.11, 2.12, 2.13, 2.14, 2.15, 2.16, 2.17, 2.18, 2.20, 2.21, 2.22, 2.23, 2.24, 2.25, 2.30, 2.31, 2.32, 2.33, 2.34, 2.35, 2.36, 2.40, 2.50, 2.60, 2.61, 2.62, 2.70, 2.71, 2.72, 2.80, 2.81, 2.82, 2.83, 2.84, 2.85, 2.86, 2.87, 2.861, 2.871, 2.872, 2.873, 2.874, 2.875, 2.876, 3.0.0, 3.0.1, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.2.0, 3.2.1, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.4.0, 3.4.1, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.6.6, 3.6.7, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.8.0, 3.8.1, 3.8.2

CPE External links

https://blog.nintechnet.com/multiple-vulnerabilities-in-sliced-invoices-plugin/

https://www.exploit-db.com/exploits/47540

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Cross-site request forgery

Severity: Medium

CVSSv3: 4.1 [CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in admin/class-sliced-admin.php. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sliced Invoices – WordPress Invoice Plugin: 2.0.0, 2.0.2, 2.0.3, 2.04, 2.05, 2.06, 2.07, 2.08, 2.09, 2.10, 2.11, 2.12, 2.13, 2.14, 2.15, 2.16, 2.17, 2.18, 2.20, 2.21, 2.22, 2.23, 2.24, 2.25, 2.30, 2.31, 2.32, 2.33, 2.34, 2.35, 2.36, 2.40, 2.50, 2.60, 2.61, 2.62, 2.70, 2.71, 2.72, 2.80, 2.81, 2.82, 2.83, 2.84, 2.85, 2.86, 2.87, 2.861, 2.871, 2.872, 2.873, 2.874, 2.875, 2.876, 3.0.0, 3.0.1, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.2.0, 3.2.1, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.4.0, 3.4.1, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.6.6, 3.6.7, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.8.0, 3.8.1, 3.8.2

CPE External links

https://blog.nintechnet.com/multiple-vulnerabilities-in-sliced-invoices-plugin/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Reflected cross-site scripting

Severity: Low

CVSSv3: 4.9 [CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sliced Invoices – WordPress Invoice Plugin: 2.0.0, 2.0.2, 2.0.3, 2.04, 2.05, 2.06, 2.07, 2.08, 2.09, 2.10, 2.11, 2.12, 2.13, 2.14, 2.15, 2.16, 2.17, 2.18, 2.20, 2.21, 2.22, 2.23, 2.24, 2.25, 2.30, 2.31, 2.32, 2.33, 2.34, 2.35, 2.36, 2.40, 2.50, 2.60, 2.61, 2.62, 2.70, 2.71, 2.72, 2.80, 2.81, 2.82, 2.83, 2.84, 2.85, 2.86, 2.87, 2.861, 2.871, 2.872, 2.873, 2.874, 2.875, 2.876, 3.0.0, 3.0.1, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.2.0, 3.2.1, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.4.0, 3.4.1, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.6.6, 3.6.7, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.8.0, 3.8.1, 3.8.2

CPE External links

https://wpvulndb.com/vulnerabilities/9920/
https://blog.nintechnet.com/multiple-vulnerabilities-in-sliced-invoices-plugin/
https://nitesculucian.github.io/2019/10/22/sliced-invoices-3-8-2-authentificated-reflected-xss-vulne...

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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