CVE-2020-8813

Exp

graph_realtime.php in Cacti 1.2.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in a cookie, if a guest user has the graph real-time privilege.

Published: 2020-02-22 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-8813 is rated High Exploit Risk (84.8/100): CVSS High severity, with high exploitation likelihood (EPSS 93.59%, 100th percentile). 6 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-8813

EDB-ID Source Kind Published Link
48145 exploit_db edb 2020-02-03 Exploit-DB ↗
48144 exploit_db edb 2020-02-03 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-8813

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-26 93.93% 93.59% -0.33%
2 2026-04-04 94.12% 93.93% -0.19%
3 2026-01-04 — 94.12% —

Full EPSS history (38 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-8813

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2020-8813

OS Trackers for CVE-2020-8813

vendor priority summary link
alpine high CVE-2020-8813: 1 source package rows (cacti); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2020-8813
debian not yet assigned CVE-2020-8813 not yet assigned priority: Debian including 1 source packages (cacti), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-8813
gentoo normal CVE-2020-8813: 1 GLSA(s) (202004-16), 1 atom(s) (net-analyzer/cacti); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-8813
ubuntu medium CVE-2020-8813 medium priority: Ubuntu including 1 source packages (cacti), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 13, ignored 1, needed 1, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2020-8813

Affected software / configurations for CVE-2020-8813

Vendor Product Version Raw CPE
cacti cacti 1.2.8 cpe:2.3:a:cacti:cacti:1.2.8:*:*:*:*:*:*:*
fedoraproject fedora 30 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
opmantek open-audit 3.3.1 cpe:2.3:a:opmantek:open-audit:3.3.1:*:*:*:-:*:*:*
opensuse suse_package_hub — cpe:2.3:o:opensuse:suse_package_hub:*:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References for CVE-2020-8813

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00042.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00048.html Exploit Third Party Advisory
http://packetstormsecurity.com/files/156537/Cacti-1.2.8-Unauthenticated-Remote-Code-Execution.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/156538/Cacti-1.2.8-Authenticated-Remote-Code-Execution.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/156593/Cacti-1.2.8-Unauthenticated-Remote-Code-Execution.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/157477/Open-AudIT-Professional-3.3.1-Remote-Code-Execution.html Third Party Advisory VDB Entry
https://drive.google.com/file/d/1A8hxTyk_NgSp04zPX-23nPbsSDeyDFio/view Exploit Third Party Advisory
https://gist.github.com/mhaskar/ebe6b74c32fd0f7e1eedf1aabfd44129 Exploit Third Party Advisory
https://github.com/Cacti/cacti/issues/3285 Issue Tracking Third Party Advisory
https://github.com/Cacti/cacti/releases Release Notes
https://lists.debian.org/debian-lts-announce/2022/12/msg00039.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M77SS33IDVNGBU566TK2XVULPW3RXUQ4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAX3LDXPIKWNBGVZSIMZV7LI5K6BZRTO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XEMDQXDRNQYXOME7TACKDVCXZXZNGZE2/
https://security.gentoo.org/glsa/202004-16 Third Party Advisory
https://shells.systems/cacti-v1-2-8-authenticated-remote-code-execution-cve-2020-8813/ Exploit Third Party Advisory
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