VDB-129812 · CVE-2018-20724 · Nessus 255125

Cacti up to 1.1.x pollers.php Hostname cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Cacti up to 1.1.x and classified as problematic. Affected by this issue is some unknown functionality of the file pollers.php. Such manipulation as part of Hostname leads to cross site scripting. This vulnerability is uniquely identified as CVE-2018-20724. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cacti up to 1.1.x (Log Management Software) and classified as problematic. Affected by this issue is an unknown code of the file pollers.php. The manipulation as part of a Hostname leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

A cross-site scripting (XSS) vulnerability exists in pollers.php in Cacti before 1.2.0 due to lack of escaping of unintended characters in the Website Hostname for Data Collectors.

The bug was discovered 01/16/2019. The weakness was disclosed 01/16/2019 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-20724 since 01/16/2019. The attack may be launched remotely. A simple authentication is needed for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:pollers.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 255125 (Linux Distros Unpatched Vulnerability : CVE-2018-20724), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.2.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (255125). The entries VDB-129811, VDB-129813 and VDB-129814 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Log Management Software

Name

Cacti

Version

License

open-source

Website

Product: https://github.com/Cacti/cacti/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.5

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

NVD Base Score: 4.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

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
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 255125
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-20724

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Cacti 1.2.0
Patch: github.com

Timelineinfo

01/16/2019 🔍
01/16/2019 +0 days 🔍
01/16/2019 +0 days 🔍
01/16/2019 +0 days 🔍
01/17/2019 +1 days 🔍
08/27/2025 +2414 days 🔍

Sourcesinfo

Product: github.com

Advisory: 1f42478506d83d188f68ce5ff41728a7bd159f53
Status: Confirmed

CVE: CVE-2018-20724 (🔍)
GCVE (CVE): GCVE-0-2018-20724
GCVE (VulDB): GCVE-100-129812
See also: 🔍

Entryinfo

Created: 01/17/2019 11:45
Updated: 08/27/2025 07:25
Changes: 01/17/2019 11:45 (62), 05/02/2020 09:21 (1), 07/01/2023 11:50 (5), 08/27/2025 07:25 (18)
Complete: 🔍
Cache ID: 216::103