CVE-2017-5630

Exp

PECL in the download utility class in the Installer in PEAR Base System v1.10.1 does not validate file types and filenames after a redirect, which allows remote HTTP servers to overwrite files via crafted responses, as demonstrated by a .htaccess overwrite.

Published: 2017-02-01 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-5630 is rated High Exploit Risk (83.5/100): CVSS High severity, with high exploitation likelihood (EPSS 12.51%, 96th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +7.40% over the last day, indicating growing attacker interest. 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-2017-5630

EDB-ID Source Kind Published Link
41185 exploit_db edb 2017-01-30 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-5630

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 2026-06-15 5.12% 12.51% +7.40%
2 2025-11-27 5.74% 5.12% -0.63%
3 2025-11-21 — 5.74% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5630

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N 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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N 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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-5630

GitHub Security Advisory for CVE-2017-5630

GHSA-xxv8-pv43-57x5 · Severity: high · Ecosystem: composer — PEAR core file overwrite vulnerability

OS Trackers for CVE-2017-5630

vendor priority summary link
debian unimportant CVE-2017-5630 unimportant priority: Debian including 1 source packages (php-pear), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2017-5630
redhat medium — https://access.redhat.com/security/cve/CVE-2017-5630
suse low CVE-2017-5630 severity low: SUSE including 52 source package names (apache2-mod_php7, php7, …), 459 product×package rows across 11 product lines (SUSE Enterprise Storage 7, SUSE Enterprise Storage 7.1, … (11 product lines)): Will Not Fix 459. https://www.suse.com/security/cve/CVE-2017-5630/
ubuntu negligible CVE-2017-5630 negligible priority: Ubuntu including 4 source packages (php-pear, php5, php7.0, php7.1), 92 status rows across 23 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, xenial, yakkety, zesty): DNE 62, ignored 15, deferred 7, not-affected 6, needed 2. https://ubuntu.com/security/CVE-2017-5630

Affected software / configurations for CVE-2017-5630

Vendor Product Version Raw CPE
php pear 1.10.1 cpe:2.3:a:php:pear:1.10.1:*:*:*:*:*:*:*

References for CVE-2017-5630

URL Tags
http://pear.php.net/bugs/bug.php?id=21171 Vendor Advisory
http://www.securityfocus.com/bid/95882 Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/41185/ Third Party Advisory VDB Entry
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