HOMEVULNERABILITIESCVE-2018-20523
MEDIUMPOC

CVE-2018-20523

CWE-77Published: June 7, 2019· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

Xiaomi Stock Browser 10.2.4.g on Xiaomi Redmi Note 5 Pro devices and other Redmi Android phones allows content provider injection. In other words, a third-party application can read the user's cleartext browser history via an app.provider.query content://com.android.browser.searchhistory/searchhistory request.

NVD Source

Technical Analysis

CVE-2018-20523 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A proof-of-concept (PoC) exploit exists for CVE-2018-20523. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

mi37 product(s)
stock browserredmi 7 firmwareredmi 7redmi note 7 firmwareredmi note 7redmi note 6 pro firmwareredmi note 6 proredmi 6 firmwareredmi 6redmi 6a firmwareredmi 6aredmi s2 firmware+25
Source: NVD CPE · 37 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/163796/Xiaomi-10.2.4.g-Information-Disclosure.html
ADVISORYhttps://sec.xiaomi.com
ADVISORYhttps://vishwarajbhattrai.wordpress.com/2019/03/22/content-provider-injection-in-xiaomi-stock-browser
ADVISORYhttp://packetstormsecurity.com/files/163796/Xiaomi-10.2.4.g-Information-Disclosure.html
ADVISORYhttps://sec.xiaomi.com
ADVISORYhttps://vishwarajbhattrai.wordpress.com/2019/03/22/content-provider-injection-in-xiaomi-stock-browser

All References (6)

→
http://packetstormsecurity.com/files/163796/Xiaomi-10.2.4.g-Information-Disclosure.htmlExploit · Third Party Advisory · VDB Entry
→
https://sec.xiaomi.comBroken Link · Vendor Advisory
→
https://vishwarajbhattrai.wordpress.com/2019/03/22/content-provider-injection-in-xiaomi-stock-browserExploit · Third Party Advisory
→
http://packetstormsecurity.com/files/163796/Xiaomi-10.2.4.g-Information-Disclosure.htmlExploit · Third Party Advisory · VDB Entry
→
https://sec.xiaomi.comBroken Link · Vendor Advisory
→
https://vishwarajbhattrai.wordpress.com/2019/03/22/content-provider-injection-in-xiaomi-stock-browserExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2018-20523
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-77
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedJun 7, 2019

Related CVEs (CWE-77)

CVE-2024-32766
10.0
CVE-2015-6912
10.0
CVE-2017-7722
10.0
CVE-2017-7876
10.0
CVE-2018-16462
10.0
CVE-2015-1815
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-20523 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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