CVE-2018-1999022 [Critical] | Code Injection in Html Quickform

PEAR HTML_QuickForm version 3.2.14 contains an eval injection (CWE-95) vulnerability in HTML_QuickForm's getSubmitValue method, HTML_QuickForm's validate method, HTML_QuickForm_hierselect's _setOptions method, HTML_QuickForm_element's _findValue method, HTML_QuickForm_element's _prepareValue method. that can result in Possible information disclosure, possible impact on data integrity and execution of arbitrary code. This attack appear to be exploitable via A specially crafted query string could be utilised, e.g. http://www.example.com/admin/add_practice_type_id[1]=fubar%27])%20OR%20die(%27OOK!%27);%20//&mode=live. This vulnerability appears to have been fixed in 3.2.15.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-02-06	1.40%	1.33%	-0.07%
2	2025-03-30	3.84%	1.40%	-2.44%
3	2025-03-29	—	3.84%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-02-06

1.40%

1.33%

-0.07%

2025-03-30

3.84%

1.40%

-2.44%

2025-03-29

—

3.84%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.0	CRITICAL	`CVSS:3.0/AV:N/AC:L/PR:N/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:N) No account or special rights needed—anonymous or random user is enough. 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.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.0

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/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:N): No account or special rights needed—anonymous or random user is enough.
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.

3.9

5.9

[email protected]

7.5

2.0

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

6.4

[email protected]

OS Trackers for CVE-2018-1999022

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2018-1999022 not yet assigned priority: Debian including 1 source packages (civicrm), 1 status rows across 1 suites (bullseye): resolved 1.	https://security-tracker.debian.org/tracker/CVE-2018-1999022
`ubuntu`	medium	CVE-2018-1999022 medium priority: Ubuntu including 1 source packages (civicrm), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 7, ignored 7, needs-triage 5.	https://ubuntu.com/security/CVE-2018-1999022

Affected software / configurations for CVE-2018-1999022

Vendor	Product	Version	Raw CPE
html_quickform_project	html_quickform	3.2.14	cpe:2.3:a:html_quickform_project:html_quickform:3.2.14:::::::*
civicrm	civicrm	<= 4.6.37	cpe:2.3:a:civicrm:civicrm::::::::
civicrm	civicrm	5.3.0	cpe:2.3:a:civicrm:civicrm:5.3.0:::::::*

References for CVE-2018-1999022

URL	Tags
http://blog.pear.php.net/2018/07/19/security-vulnerability-announcement-html_quickform/	Vendor Advisory
https://civicrm.org/advisory/civi-sa-2018-07-remote-code-execution-in-quickform	Third Party Advisory

URL

CVE-2018-1999022

Exploit prediction scoring system (EPSS) score for CVE-2018-1999022

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1999022

Weakness enumeration for CVE-2018-1999022

OS Trackers for CVE-2018-1999022

Affected software / configurations for CVE-2018-1999022

References for CVE-2018-1999022