NVD / CVE Program· CNA mitre

CVE-2020-24786: An issue was discovered in Zoho ManageEngine Exchange Reporter Plus before build number 5510, AD360 before build number 4228, ADSelfService

Noroxi assessment

Priority: Plan (action score 43/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 12.8% (FIRST EPSS); higher than 96.2% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An issue was discovered in Zoho ManageEngine Exchange Reporter Plus before build number 5510, AD360 before build number 4228, ADSelfService Plus before build number 5817, DataSecurity Plus before build number 6033, RecoverManager Plus before build number 6017, EventLog Analyzer before build number 12136, ADAudit Plus before build number 6052, O365 Manager Plus before build number 4334, Cloud Security Plus before build number 4110, ADManager Plus before build number 7055, and Log360 before build number 5166. The remotely accessible Java servlet com.manageengine.ads.fw.servlet.UpdateProductDetails is prone to an authentication bypass. System integration properties can be modified and lead to full ManageEngine suite compromise.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Published: Aug 31, 2020
Updated: Jun 16, 2026
EPSS: 12.8% · 96th percentile
CWE: CWE-287

Report tools

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Action score

Plan

Add it to your regular patch cycle.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 4 / 30 · 12.8%

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Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
zohocorp	manageengine adselfservice plus	cpe:2.3:a:zohocorp:manageengine_adselfservice_plus
zohocorp	manageengine exchange reporter plus	cpe:2.3:a:zohocorp:manageengine_exchange_reporter_plus
zohocorp	manageengine ad360	cpe:2.3:a:zohocorp:manageengine_ad360
zohocorp	manageengine datasecurity plus	cpe:2.3:a:zohocorp:manageengine_datasecurity_plus
zohocorp	manageengine recovermanager plus	cpe:2.3:a:zohocorp:manageengine_recovermanager_plus
zohocorp	manageengine eventlog analyzer	cpe:2.3:a:zohocorp:manageengine_eventlog_analyzer
zohocorp	manageengine adaudit plus	cpe:2.3:a:zohocorp:manageengine_adaudit_plus
zohocorp	manageengine o365 manager plus	cpe:2.3:a:zohocorp:manageengine_o365_manager_plus
zohocorp	manageengine cloud security plus	cpe:2.3:a:zohocorp:manageengine_cloud_security_plus
zohocorp	manageengine admanager plus	cpe:2.3:a:zohocorp:manageengine_admanager_plus
zohocorp	manageengine log360	cpe:2.3:a:zohocorp:manageengine_log360

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

zohocorp manageengine ad360up to 4.1 inclusive
zohocorp manageengine ad3604.2
zohocorp manageengine adaudit plusup to 5.1 inclusive
zohocorp manageengine adaudit plus6.0
zohocorp manageengine admanager plusup to 6.6 inclusive
zohocorp manageengine admanager plus7.0
zohocorp manageengine adselfservice plusup to 5.7 inclusive
zohocorp manageengine adselfservice plus5.8
zohocorp manageengine cloud security plusup to 4.0 inclusive
zohocorp manageengine cloud security plus4.1
zohocorp manageengine datasecurity plusup to 5.0 inclusive
zohocorp manageengine datasecurity plus6.0
zohocorp manageengine eventlog analyzerup to 12.1.2 inclusive
zohocorp manageengine eventlog analyzer12.1.3
zohocorp manageengine exchange reporter plusup to 5.4 inclusive
zohocorp manageengine exchange reporter plus5.5
zohocorp manageengine log360up to 5.0 inclusive
zohocorp manageengine log3605.1
zohocorp manageengine o365 manager plusup to 4.2 inclusive
zohocorp manageengine o365 manager plus4.3

Same product

zohocorp: all records

Other highest-scoring records for the same primary product.

CVE-2021-40539Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execuKEV
99Now
CVE-2022-28810Zoho ManageEngine ADSelfService Plus before build 6122 allows a remote authenticated administrator to execute arbitrary operating OS commandKEV
78This week
CVE-2021-28958Zoho ManageEngine ADSelfService Plus through 6101 is vulnerable to unauthenticated Remote Code Execution while changing the password.
61This week

Published before and after this one in the same product

← EarlierCVE-2020-11518Apr 4, 2020 · Zoho ManageEngine ADSelfService Plus before 5815 allows unauthenticated remote code execution.
45Plan
← EarlierCVE-2020-11552Aug 11, 2020 · An elevation of privilege vulnerability exists in ManageEngine ADSelfService Plus before build 6003 because it does not properly enforce use
41Plan
Later →CVE-2018-5353Sep 30, 2020 · The custom GINA/CP module in Zoho ManageEngine ADSelfService Plus before 5.5 build 5517 allows remote attackers to execute code and escalate
42Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

medium.com/%40frycos/another-zoho-manageengine-story-7b472f1515f5

Show all references (11 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records